I was just talking about fixing his Mopar electronic distributor. It can trigger either the factory Mopar module or a GM HEI module. I think he will need to find a junk distributor to get the baseplate.
My comment on the "ready to run" distributor is that it costs only ~$50 and gives you a brand-new distributor with a better designed pickup. You could wire it to trigger a Mopar module, though I would use the built-in HEI module, lose the ballast, and run a better coil.