I fear these will be too dangerous. I dont want to be a kill joy, I love models. Without suspension, it wont take much to lift the nose and if you know what happens to a 1/8th when the nose lifts, there is no way I would marshal it, specially with EP drive. Car park racers need only hit a stone and the car will become a plane...

One of my club members adapted a 1/8th IC car to EP, it was insanely fast and heavy. I was sitting marshalling on the twisty section I could not hear it approaching. A 2S version would be advisable to keep it light if you want to attract newcomers or beginners.