I have a turmoil, it's got the rimfire and BL-8. It's got plenty of power for the plane, but if you really want the rimfire, I'd go with a 12 amp esc. After you read about the motor you find out that 8 amps is good enough for the prop they reccomend, but if you want to do anything else, go with the 12 amp ESC, I think that's a much safer choice. I haven't flown mine yet, I'm a bit of a newbie, and I already wrecked one on my first attempt. I have the JR ultralite receiver in mine, a 6 channel, it's a great receiver if you have a JR radio... In my other plane I have a GWS 4 ch micro reciever, some people say it sucks but in my expereince (this plane I have some experience with) it's fine, and it's only like 20 bucks!!! The 640 is a good match for the plane, I'd reccomend it. If you have issues with the hinge clips, just get some hinge tape and use that instead, the hinges have a tendancy to break. Good luck.