You want to run a lower kV in a truggy, and gear up, as the lower kV motors are more torquey, which is needed in a truggy. Something like a 1900 or 1700kV would be good. It is a common misconception that high kV=more powerful, but it is simply that they have more revs than torque. In a truggy, you need more torque, so go for lower kV. It's better to run a truggy on 5S too, for the efficiency gains. If you do, go for a 1700kV motor.
The bodies will fit, the electrics don't really stick up any more than the nitro radio box.
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