Old guy,
The three photo's were of the same engine, to give you a reference of the overall size. The pull starter is long gone. I have already stripped the aluminum and plastic to typical aircraft use. I have a second flywheel that has the fins on the front, I think it would move more air for you.

This is a used motor, and I bought it used at a flea market, I can't speak for it's reliability, but it can be yours for the cost of shipping.

Let me know what you want to do.
R. C.