Hello, A friend of mine, my Cello teacher, gave me a very special present a couple of years ago, a DC3 Dakota kit from Royal, I did not start building it yet, because I do not have the engines, and I do not know how complicated is to build and fly a twin. Someone can tell something about it? What about the engines? On the box says, 40 to 60, I think on that years, did not exist the 4 stroke engines. the plane is the same size than the one that Top Flite sells, but works on the same 25-40 engines suggested by Top Flite? Any suggestions to push me to start bulding it are welcome.