I can report that I figured out the tattoos, and "other" bits (the sex stuff) that don't work with the installer. Not going to post a picture of any of the sex stuff (bit too graphic for a public forum) but here is the Mayan calendar on my char's back:
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To achieve this, pick up the WTEX files on these two pages (you'll want both):
Daedalus tattoos and fun stuff part 1) and here
Daedalus tattoos and fun stuff part 2 . Basic instructions are on the first page, but here's the changes you'll need to make: Right click the chosen file, say for an arm tattoo, and rename the file so that "Bare" is replaced by "2021". The rest stays the same. Then drop it into the Female folder as instructed. It will ask if you want to replace the existing file, click yes. This also means that all of the chest files are mutually exclusive as are the hip ones, but you can run one of each.
So now the only parts I can't get working are the breast scale multiplier and the bounce feature. If someone smarter than me could sus that out it would be very much appreciated. I don't need them as big as in the pics on Daedalus' pages I linked to, but a little bigger and realistically bouncy would be nice.