https://www.docentelectronics.com/httpdocs/AmusementGames/Pinball/Gottlieb/system%2080%20AB.htm
I ordered some edge connectors from Docent several years ago for my Cleopatra. They took about 3 weeks to show up. I was in no hurry but it was a bit frustrating especially considering that they are about an hour away from me. But it is an option.