I certainly don't have any more insight than you wink I am working with Norbyte to get collisions working (well he's working, I am testing ,p) but besides that, currently all material work is on hold because I can't figure Larian's normal maps out. I am probably just stupid, but I can't generate normal maps that are like Larians. So none of my custom materials have working normal maps.

Larian needs to give us whatever they used to create these weird channel orders. Surely they didn't create them manually! (I hope!)