Snoop,
seems like there is a bigger choice than I thought, it's just that I know absolutely nothing about these makes of engine.

I may have this wrong, but I would like the sound of the engine to be something fitting for this war bird, if you know what I meen. Maybe a twin or a rotary if I can get one in[:-].

How does it perform with the two combinations you mentioned, I would like to spin a 3 blade prop if I can, keep it stand off scale if possible.