The last couple of weeks, PB has been watching lots of track wheel vehicle videos on YouTube, I just thought he was on another rabbit trail, he travels those quite often, and sometimes something really interesting comes of it.
Let me backtrack just a bit, about 3 years ago, we were gifted an old (but still working) Craftsman lawn tractor, a very small tractor with 4 wheels, it has been sitting in our shed waiting to become useful.
PB wants to turn it into a half-track to make it easier to get up and down the hill and do as little damage to the land as possible. Here is a mock up of what he plans to do. More to come :)
Here is a video showing what someone else did
https://youtu.be/jQs25GH-hTw