You can buy the parts from Happs site - I actually rebuilt my Arachnid English Mark Darts, and ordered a bunch of parts from Divemaster here on the boards - check out the B/S/T section. However, no, you can run the roms through Mame - I don't believe anyone has actually dumped them, and the hardest part of all would be to build the interface. A couple of people have done it with a parallel port and specialized software, however it is not the original program. Check Craigslist, check Ebay, check the auctions - deals are around, you just have to be patient, and always looking. I would recommend saving a search in ebay, and setting up RSS feeds for Craigslist...