As for that starter, be sure you rule out problems with the battery cables, engine-to-chassis ground and all the heavy wiring connectors in the starter circuit. Corrosion (sometimes unseen inside the insulation) or a frayed cable can cause a power loss at the starter.
I’ve swapped the main battery and ground lead. The ones on it weren’t too hot looking.
Eventually one of the painless harnesses (supposedly very close to OEM) is on the agenda.
The cap is ill fitting and the wires off of it are sad. Those will get swapped with the rotor button.
At least the rain and some other conflicts mean I don’t have sit it out at a boring college baseball game or two and I might acutally have some open time instead of a piecemeal couple hours here and there.