That motor is a Chonda, probably less than 5HP given the size of the fuel tank. I don't know that I would like to stand on that little platform with the exhaust pouring out over my left leg and foot. The wheels look to be standard pneumatic wheels from a hand trolley. You can probably get suitable tracks to make one from a snow mobile and a differential drive from either a ride on or a go kart. All in all, a fun project but I doubt the value of it on a rural property, especially uneven terrain as it centre of gravity would be quite high if you are a fair sized bloke like myself.
