RE: Engine Question...
You're about three planes away from flying that Warbird. Get set up on a good trainer, then graduate to a low wing taildragger, then you may want to think about a more aggressive sport plane. Warbirds were designed to be fast and nimble. Nimble = unstable. If you bought a sport scale Corsair like a Great Planes it could be your third plane, if you bought something more scale like a TopFlight or other, it should be your fourth. The more scale, the more unstable the plane will be.
I have a Corsair as well, and it is hung up until I am ready to fly a more complex bird. I have too many hours into that plane to see it thrown out in two minutes.