All MPUs are using the cheap Alterra Cyclone II dev board which is available on eBay for 15€ or so. Search for "Altera CycloneII EP2C5T144". Make also sure you also include, at least one, programmer (USB Blaster) in your order.
At the moment I do have:
BallyFA for Bally pinball machines ->Version 0.x tests finished, functional, version 1.x in development
GottFA80 for Gottlieb System80/80A/80B pinball machines ->Version 0.x in development
GottFA1 for Gottlieb System1 pinball machines -> planed