haha! I think mounts already work like accessories for that, I haven't tested it beyond a few opening rounds to get units to show up correctly, build and function in tactical battles...
Finals week came up last week, this week and next week for various classes, so I am down for a bit. Will be back up and running once I get some breathing room 
The only problem with equipment and monsters is that some monsters look better than others: humanoid things like skeletons and butchermen might have a few collisions, while Dragons give you a face full of Ogre Crotch and a piece of floating gear.