Those are some good lookin' masks. I'm gonna have to go back and check out that site more thoroughly.
I have a couple of tanks that are purely fictitious, but I'd like most of them to represent real tanks, and I'm thinking about tying some of them in with my 1/32 scale static aircraft just in that they could have been seen together in the same area. For example, I have an FW190 (that one's actually 1/24th) that's based on a plane flown by Emil "Bully" Lang and it would be cool to find a tank to match (One that Bully might have flown over at some point). I like those little connections.