If you have not found a board yet pm me with an offer. I have at least one heavy barrel laying around
Also have the joysticks but don't really want to part with them. But may consider it as I have a few spares.
I've got a bag of nos and used rotary joys.. Prolly could make 3-4 complete sticks with all the parts. 3-4 nos ball top and a couple used but very nice SNK ones.. I'd sell the whole lot for $50 plus shipping