There's some extremely rare Solid State pinball machines whose ROMs have never been uploaded, and I reached out to their owners and offered to pay them to upload said ROMs before they're lost forever. I'm assuming that neither of them have ever uploaded a ROM before, but maybe they can reach out to someone who has in their community and split the money with them? I've never dumped/uploaded a ROM before, so I don't know how much I should offer to pay.