Got some good news... and some bad news.
The good news, I made the skin!:
And I'm sure from that screenshot above, you can already see what the bad news is.
For those who aren't familiar with models, that "T-Pose" the alien is doing is the result of a lack of animations, very similar to what I theorized with @Mephiles550 above. I tested this bad boy out, and it turns out he lacks an idle animation, a walking animation, a death animation and presumably combat animations. That means my plan of adding this guy in random locations in the galaxy isn't going to be a thing after all
Oddly enough, when you speak to the alien he THEN has animations as seen here:
After the convo
But when you leave the module and return he's back to T-Posing!
So what I think I'm going to do is restore him in the Manaan Swoop Track area, taking the place of one of the Gran's as their ambient scripts make them perform animations which prevents T-Posing.