Quoted from unigroove:I think the basic stuff IPB has for sale
No, IPB sold all their Capcom, Alvin G, and Williams stuff to PSPA 4 1/2 years ago. All they really have now is B/W repro parts....playfields, plastics sets, molded parts, etc.
To the OP: As has been mentioned twice above, contact PSPA for your Capcom needs, and don't be afraid to buy any game due to parts scarcity. There is always a way to keep stuff going. I've managed to do so with a lot of rare pins over the years, some of which there are literally only a handful of out there. Buy what you like!