Cowboy,

Understand your thoughts but just to clarify something for you. You do not have to "break in" a gas engine on the ground. That is usually done in the air from the first minute and is all about the type and mix of oil used. Typically 30:1 top 32:1 of some brand of petrolium based oil for 5 or 10 gallons followed by some brand of synthetic.

The OS160 will do just fine on this plane

I also gotta ask you about your username, does it stand for being a rodeo clown especially since their main job is exactly what your username stands for? Just curious