[Woodsmith]

I'm supposed to be a cabinet maker though.

Still, it is a start. Maybe I will relearn as I make some more bits for the tractor.

I will need to make some steel brackets to fix it to the chassis and then I can use the wood to start mounting fenders over the wheels and covering the vulnerable electrical bits.

Oh, almost forgot.

I drove it. Only a couple of feet back and forth but it works fine.
The chain is a little noisy and the parking brake isn't quite up to stalling the motor in any gear but neither does the foot brake!
So long as it stops it rolling down a steep slope then that will do.