Look, I said before that you MIGHT want to get a different trainer. If you're going to have help, get the Avistar, but the other guy is right, get the ARF. I can't build anything, and I got the ARF. They are easy, and he's exactly right, you have an engine, then you can save money for a good radio. They one you'll get with the RTF, won't satisfy you for long. I'd be patient and build the ARF, it's only 99$! You're just getting ripped if you already have an engine and you've built an ARF before.