I had this same IDEA come to me also,
I got the first Idea from the Old "Romel's Ride" model kit and thought it would be cool idea as a "Bonzi Bomb"
Then while at work we had a couple of these Mini Marooka's on the job. They have rubber tracks about the right demensions,
and the drive is via a Hydalic pump on a Kubota or Izuzu Motor. So it would be easy to set up the drive line as it's all hydalic hoses
out of the main pump.
Go with it,
CAPT