well, the engine was close to free and it came with servos and an airplane...oh and a receiver. I think the experience I will get out of changing this part will be pretty cool. Plus is not like it's the only engine I have. I will do it when I get around it. I have 4 other planes that I am enjoying right now. When I start experimenting with flying wings and who knows what else I will try, then I might get around to it. One thing is for sure, it might be hard to do, but it will be worth it, and I am not talking about money.
thanks for the help everyone.