We're currently using native battle AI, any AI kits we might implement in the future will probably be optional, so you'll be able to turn them on/off. We're currently concentrating more on the factions strategic AI, because we can't use native for that.
Full size of what? The concept is full size there already, for the emerald I used this:
I usually make a few corrections to the texture wherever needed, after I see how stuff looks in game ;)
I really want to add voices for the battle commands (we might need some additional voice work for that *hint*), but this kind of details will probably be at the bottom of a long list of features we want to implement.
You already answered to several of those questions yourself :)
It's only logical the fact you need to sacrifice speed in order to get better (read heavier) protection. We want to make the mod as balanced as possible, while keeping in mind the roleplay is a very important part of it. We have...