Or order an adapter from BME

Seriously though - Thanks for such a detailed description. I'm going to take another crack at it this winter. Ireally have to get this plane out of my shop so my brother can actually fly it this year. Next time it will be machined on the crank and bored instead of drilled. I haven't tried turning inside threads yet so I'll have to practice that first anyway.

I'll post some pictures when I actually get the prop spinning