Tonight I removed the pistons and cleaned up all the journals and crankshaft with 400 grit carborundum very carefully.
The attached video shows how the crankcase can be turned without the pistons. I also spun the crankshaft in the case without the top cover. It rotated smoothly with any wobble at all, so I believe the crankshaft is straight.
I removed the top 2 piston rings from each piston to measure the gaps, bottom had ~.002, top had ~.005. The.002 is too little, the .005 is on the bottom end of ok. I was expecting more ring gap. Before the pistons came out I could move them by hand when they were in the crankcase. If had to file the rings there is the gap, a lip and then the rest of the ring. Filing that lip would be difficult to do with my dremel tool and a rotary file. The lip is very thin and just touching it would remove the ring material very quickly. Filing it by hand would be risky as well.
The crankshaft bearing measurements are greater than spec. It was difficult to get measurements with my digital caliper, it was around 20 degrees in the garage. I was careful in polishing the crankshaft journals with the 400 grit. You can see they are not quite polished.
The cylinder walls were smooth top to bottom.
Please advise on where to go from here. Ed Elliott has new connecting rods and all the gaskets needed to put this back together.
Thank you for your patience and time.
