Quoted from MikeO:I’ve actually reproduced replacement match relays for El Dorado(twice) and Centigrade 37 before. I have a Sky Jump and could provide this service. Figure $100 plus the parts which is usually better starting with a used match relay off of ebay.
I should have the pieces you need, I had to kill off a SkyJump because the harness started falling apart due to rott. Both F relay and the wiper to the ball count unit. Give me the pin count on the jones plug so I pull out the right one, I have 2-3 F relays with harness.