I like the sound of tintable areas on players. They did this in left 4 dead to add variety to the zombies, and car models. Not sure if it's something Vino can hack in without the source code though. And I have no idea how it would work in practice either.
I can always pump out skins and people in the community who know how can reskin our stuff too. Well DA is a source mod so it's the same as doing it for CS:S, CS:GO, Portal, TF2, HL2 etc. There's heaps of tutorials on the net, you could learn how too. Actually I can't find a good tutorial on adding skins to models, I might do a video on it. In any case, anybody can get all our source files [url="http://sync.doubleactiongame.com/"]here[/url] if they want to fiddle around.
About character models in general, we kind of have to decide wether we're going to pay a pro to do it properly or forget it altogether, but we're all broke.