racerbob,
Good plan.
My CAP went in from 60' the other day. Engine was flat out and is a STRONG engine. The airplane went in pretty much like a lawn dart, straight in. It did have a bit of an angle, but not much.

The wooden prop was "gone". OK, the hub of it was still there, but both blades were gone. Not a surprise. And the plastic spinner was, shall we say, scratched badly. Some of the scratches went all the way through. And the spinner backplate was a mess. I'm not sure how many pieces. The needle valve extension was bent but it was just 1/16" piano wire. And the composite motor mount was broken off. Both arms were still securely fastened to the engine, but ended about even with the backplate.

Spinners and props not only absorb energy by breaking, but they do something else by breaking. When they break, they stop transferring crash force into the engine. The ones that don't break transmit the forces right on through to the engine.

Last night, I straightened the needle valve extension, decided it was too long and pulled it off, and mounted that engine on a new Calmato Sport. I'll put a new plastic spinner and wooden prop on it in a day or so when I take the airplane out for it's maiden flight. And it'll have a safer maiden with a good handling, broken in (but not broken) engine.