First, read this: https://kemono.su/gumroad/user/9889081238292/post/zrbipx
It looks crude, only works on Genesis 9, but kinda promising all at once... apparently, you only need generate an avatar here: https://www.hyper3d.ai/chatavatar - then import it using that script.
Haven't tried it yet, but was wondering what the AI mavens in here think, especially since you can generate a decent character, then just drag it into DS so that it does one thing that AI itself is still somewhat limited on: having characters remain persistent in appearance over multiple images/animations