I'm not interested in the restrictor plates. At least, not right now.
I've got a pair of joysticks I pulled off an old Street Fighter II cabinet. They're not Happ sticks, and I haven't measured them (yet). They're MCA from Australia, which I never heard of, but they're nice.
Right now I have them mounted on wood, but I would like more shaft showing. The mounting plate would make it look really sharp, plus the added height.
They're $15 each, though, so I've got to start saving my pennies.