Hey there!

http://www003.upp.so-net.ne.jp/kakomiki/page/3ddata.html

I just found these. Are there R18 Full Body Versions of them? Or could anyone do them?

in mugen (video game engine) there is one of them that is R 18 but I don't know if you're interested)

https://mugenarchive.com/forums/downloads.php?do=file&id=43575--18-mio-akiyama-dissidia