You can redo the texture ("skin") ...but importing new models w/ animations is something that has not been achieved yet. That said if you can wait a few months, my next big software project/focus is an all-in-1 import utility which should let you import whatever you have in at least these (
https://assimp.sourceforge.net/main_feat...rmats.html) formats (and asap Som models also) ...I want to make a few different intermediate formats possible also (pseudo-exporting) and don't expect that much trouble. Also in the cards is partial/multi importing (eg. like just replacing the swordsman's sword or something)
This kind of work takes time (as anyone who's followed my translation work should realize by now) ...it's very straightforward, but it's not magic.
This will be a tool completely separate from SomEx from scratch, probably called Somimp. It should make it possible to do whatever you need by professional means in terms of the mdo/mdl/txr files themselves. I'm going to give lowest priority to the map piece files... I have not decided whether Somimp should be used for anything map related or not at this point.
EDITED: Also, if you follow my doing once this gets started there will probably a number of early releases which people can use to import stuff in a limited fashion.
PS: I develop this stuff for my own selfish reasons, more or less like everything I do... if however I was approached to implement this stuff, something like this or the translation framework I did for Som would easily run over a few thousand dollars... not that I would do it mind you. That said, if anyone would ever like to donate anything at all to make my life easier, it wouldn't hurt my feelings one bit
PPS: And if any of you ever find yourself raking in a considerable income off the back of a Som game you'd better hook me up