I started the engine disassembly today (pics below). Got all three engine covers removed (crankcase, camshaft, and valve), removed the radiator, exhaust and muffler as a single unit. I suspect that it will take twice as long to put everything back together simply because every screw and piece needs a good thorough cleaning. Tomorrow I'll start to separate the blocks.
Valve side with cover removed. I looked up into the valve exhaust ports to see if I could see the valves, but I couldn't really see anything of detail.
Crankcase side with cover removed. Took a peek at the connecting rods and they look straight and not bent.
Camshaft (front) with cover removed. Notice the dirty water pump fans blades (?)
Inside of exhaust headers. Notice the carbon build up in each except #3