I don’t agree wit you fuse amp size I have 2 100w panels on my boat and your controller controls both voltage delivered and amps all you need 20 amp fuses after the controller I have seen my panels putting 12 A max on a clear Houston day. In St Croix where I was with boat I have controller heating up but my 160w x 4 were exceeding 15 A at high noon.
Thanks for the offer; I can't tell you yet if I'd be interested in any parts. I do plan on doing a partial tear-down in the next few weeks, but the engine currently has no mechanical issues except needing a shot of starting fluid when it's cold. I'm also going to de-carbon the heads and manifold. I'll know more in a few weeks and if you still have anything left we can figure it out then.