Great idea!
I want to be like Graham Jarvis?
The only concern I would have is nails/staples (you did mention pallets)
If that is an issue there are LOTS of places to hold something like this.
Dirt gymkhana is a perfect phrase - low speed, control, dirt, throttle,brake, clutch control ( they used to call it Trials, something GJ is known for)
Any real-world stuff nearby? Logs, rocks etc?