And I now have my answer (thanks, Jess!)
There's no problem with using the DKS armours in other Divinity games. Anything beyond that would need further clarification but converting them for use in e.g. DOS2 is fine.
The technicalities for doing so aren't especially well documented though I created a guide and a couple of utilities for unearthing stuff from DKS's data files which can be pressed into service if required. I can't claim any of them are especially well-written nor even well-conceived given that all were a bit of a case of making it up as I go but they do (or did) work.
The time-consuming bit would be converting them to fit DOS2 models. You're on your own there: I don't have the patience. :p
