Many people have these kits and it will be the best one you have or ever will build. A four-stroke 70 to 125(a bit on the powerful side) will fly it. A 60 to 90 two-stroke will do fine. It is a "quality" kit and everything else will be substandard in quality after this build. Enjoy I have one built, one in a kit and also the very first kit(Venture 60) that Bruce sold.