You would need a TX as well as an RX as the FT kit has no electronics. But since you already have a TX for your 1/10, you could maybe try to get a 2nd receiver so both your cars can share 1 transmitter.
Some people sell used systems with a spare receiver thrown in. I think some new radio sets are also packaged with a spare receiver thrown in (Spektrum DX3S, if I'm not mistaken). If you're still using an AM radio for your 1/10, this might be a good option as you can upgrade both radios to digital spread spectrum in one go. It's not easy selling an AM radio without bundling it with a car though, but it does look like you're selling a Desert Truck in your signature.
That Hitec HS55 servo would work for a start but most people end up running something beefier like the Hitec HS65MG. In any case, you would need a different servo saver horn for these Hitec micro servos.
Your 1/10 peak detection charger should work for the 1/18 batteries if they're both NiMH type batteries. (Wait, it's not a timer charger, I hope. That would not work.)
Last edited by sim600; 12-24-2008 at 03:15 AM.