Francis,
Very nice looking plane and you are doing a wonderful job at building this Cap 232. I will be looking for your maiden flight video when you do it. Have you ever looked at the EME line of engines. I have both DLE and EME gas engines and I like the EME a little better. They are designed a little different and use shorter stand-off's which means less vibration at lower RPM's. They also spin a larger prop at higher RPM's
Good Luck on your build and keep posting those pic's.