Originally Posted by Sparx

Some more things to remember while building the car!
1. File out the lower chassis a bit so you can slide off the clutch bell without having to remove the engine.
2. File the hole in the radio plate above the steering servo horn so you can more easily remove the servo horn with a flat tool ie. a screw driver.
3. Filing once more! Make the hole where you pass the cables for the receiver through longer, this makes it a lot easier installing the radio gear.

Besides that RMD said everything else.