[Turk]

My choice is George Anderson. GESSFORD MACHINE in Hastings Nebraska. If you like, contact me off line, for a personal endorsement. If I do it in here it may sound too much like a commercial for George. He doesn't deserve it.

Then again, I am partial.
You will get varying opinions on good engine builders on this forum. 99.9% of them are good guys. Check around and call them all, for that kind of an expense.