Qazimoto:
Yes, it is the standard ABC fuel. Perhaps I'll just cut out the extra measure of castor oil I put in it for break-in, and use the fuel as-is.
1) It's turning anti-clockwise OK. Lots of air out the back!
2) The liner lines up the way it was installed at the factory. This engine comes with a liner retention screw in the head, and I don't think the cylinder could be attached to the crankcase unless the screw and the indent in the liner match up correctly.
The engine also has a great feel when turned over due to that piston/liner seal that you mentioned. If I can't get any more snuff out of it, I'm still happy to own it and will have it in the air sometime this summer (here).
Thanks for your insight.
Dave...