Probably had a plywood backing plate, no wood in the hull.. I had a knot meter just like it.. the paddle wheel gets jammed with algae, that's the downside. But it doesn't need external power from a battery.
Yeah I believe the prop is good, don't see any damage the twist is good and that makes me wonder how the pin broke.
In any case, if the motor runs well you have to replace the pump impeller and then you will get more than your asking for!
