Thanks for all the advice, everyone. I'm not a very experienced mechanic; removing & reinstalling the engine was the most involved thing I've done on this or any other vehicle. Luckily I have a good amount of local friends who have spent time wrenching on cars and building engines (mostly piston engines) and are willing to help.
We got the flywheel off this evening, it was cleaner than I expected. There was some oil on the inner lip where it slides on the eccentric shaft, I was under the impression there would be oil on the entire rear surface of the flywheel.
There is oil on one side of the rear housing, I suppose this makes sense considering the direction the flywheel will rotate.
