adding models is not the problem, the problem is adding the rig and weights properly to the models
beware the golden penis lance and pointy tits leather armor
hmmm I know where is polish tutorial for this.
Do you use brfedit for models?
You can copy rigging from rigged model and paste it on the new one
and about the weigh, I dont know how they choose how much should items weigh but I know how to set it xD
Btw, I m making singleplayer mod based on strategus xD