I kinda got bogged down in the long post and missed the pictures. And thats the good part. I don't know about a modern starter solenoid, but a solenoid that was used on Fords from the 30's until the Y-Block era would supply power to his hilbilly fix starter. But that's not modern. Wonder how he's gonna make the thing engage. Maybe he'll put a modern servo on it. I was gonna suggest duct tape to keep the cable from flopping around when it comes loose from the starter, but that may conduct electricity. Maybe a couple of dozen zip ties like I use on wire harnesses would keep it from welding itself to something. Our local Carquest stocks the switch that would have fixed it in the first place. It was used on John Deere tractors as well as GM.