Have you looked into any of the Brachys? I just picked up a boehmei at the expo a couple weekends ago, and he's quite docile.

However, I heard Brachys can be quite skittish and will flick hairs at the drop of a pin o.o

I hope you and your dad can find what he's looking for!

P.S. I think I've seen you on the T forum lol!