[EU]
EDIT: Alright, I got textures working. I'll list images and part name along with an image of the textures it uses only for the pieces related to the task of trying to go nude. The textures will not be original size or format, but I'll post an MD5 to use for searching your output folder for it. On my current connection I need to avoid big uploads.
There's a texture called pvw_00_nude_0001 in character\texture, it may not be as good as the custom releases but it is a built in nude texture. I've not looked into any other classes atm since right now all I am trying to do is get things looking the way I want them on my Valk.
* Valk lower body nude(Not really tested actually, sorry. I just assumed):
character\model\1_pc\1_pvw\armor\10_lowerbody\pvw_00_lb_0004 and pvw_00_lb_0004_dm
Update: Sorry, lol. Though it may work if reskinned! I continue my hunt tomorrow~
[spoiler]
[ATTACH=full]49271[/ATTACH]
[/spoiler]
* Untested Valk lower body nude instead of panties replacement:
character\model\1_pc\1_pvw\armor\10_lowerbody\pvw_10_lb_0001
[spoiler]

[/spoiler]
* PAZ-files related to Valk/pvw:
[spoiler]
00019
00024
00026
00090
00091
00092
00093
00094
00095
00096
00097
00098
00099
00458
00459
00460
00461
00462
00463
00464
00465
00466
00467
00468
00469
00470
00471
00472
00473
01047
01048
01049
01050
01051
01052
01053
01054
01055
01056
01057
01058
01059
01060
01098
01103
01105
01109
01110
01120
01125
03147
03162
03316
03451
03452
03453
03454
03455
03456
03457
03458
03459
03460
03486
03693
03732
03821
03822
03833
03872
03873
03874
03875
[/spoiler]
* Nude parts
[spoiler]
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lbreast_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lcalf_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lclavicle_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger01_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger02_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger0_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger11_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger12_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger1_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger21_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger22_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger2_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger31_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger32_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger3_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger41_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger42_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfinger4_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lfoot_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lforearm_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lhand_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lhip_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lthigh_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_ltoe0_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_lupperarm_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_neck_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_pelvis_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rbreast_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rcalf_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rclavicle_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger01_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger02_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger0_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger11_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger12_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger1_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger21_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger22_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger2_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger31_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger32_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger3_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger41_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger42_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfinger4_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rfoot_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rforearm_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rhand_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rhip_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rthigh_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rtoe0_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_rupperarm_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_spine1_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_spine2_pick
character\model\1_pc\7_pvw\nude\pvw_00_customizing_body_spine_pick
character\model\1_pc\7_pvw\nude\pvw_00_nude_0001
[/spoiler]
* some multiplemodeldesc-entries + images. No texture refs just shaded images of the armors.
[spoiler]
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_00_UB_0000.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_00_UB_0000_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_00_UB_0001.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_00_UB_0001_dm.pac</Model>
</Conditional>
<!-- This seems to be a sorc armor -->
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_00_UB_0004.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_00_UB_0004_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0001.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0001_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0002.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0002_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0003.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0003_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0004.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0004_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0005.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0005_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0006.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0006_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0007.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_02_UB_0007_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_03_UB_0001.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_03_UB_0001_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_00_UB_0002.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_00_UB_0002_dm.pac</Model>
</Conditional>
<Conditional Code="D">

<Model Index="-">1_Pc/7_PVW/Armor/9_Upperbody/PVW_00_UB_0003.pac</Model>
<Model Index="D">1_Pc/7_PVW/Armor/9_Upperbody/PVW_00_UB_0003_dm.pac</Model>
</Conditional>
[/spoiler]
I've got a lot more images, though taking all the pictures is taking a while. I'll list MD5s of textures worth having them from later so it is easy to determine which files are for what from the output of resorep. Though that will likely be posted there, so I guess I'll just link it from here ;p
If wanted, I'll list more pieces for upper, lower and what not. I just need to finish all the images, there's a lot.