I have a N Rustler and i just bought an O.S. .12 CVR-X w/ rotary carb and I know the crank shaft has to be cut, but i need someone to either walk me through the steps of swapping the engine or get me a link if you can. Tell me everything you know and as much detail as you can. Even tell me obvious things or the things you think I might know already because i dont want to risk messing up or doing something wrong. And i also need to know if i need any other parts. THANKS!