I did think about the piece meal approach. A quick math exercise with Rock Auto’s individual prices would have exceeded the kit price. But I should do the same with EBay.
Buoymaker - all good questions….
Engine history and mileage is unknown. I’ve done the diesel filled crankcase and various other ring-unsticking procedures. It’s better than it once was, but still not great.
Been quite a while since I’ve checked compression. But that was good back then. I would definitely re-check, and do a leak down test before tearing down.
At a bare minimum, this old mill needs valve seals and a whole pile of gaskets.
The most cost effective approach would probably be finding another running engine on marketplace or what not.