"just clear a path 120 feet wide" Whoops, meant 12 feet wide.
I built a primitive road about that long around the permiter of my 15 acre parcel and across it in a few places. I also did some other clearing. Let me dig up a good road picture. But in the meantime, how about you ponder what I did. Buy your own used dozer for 10-15k$ and do whatever you want with it. Build your road, clear a home site, whatever. And then sell it for the same amount. The dozer will be no worse for the wear unless you are unlucky enough to break it. Running a dozer is not rocket science, the learning curve is short, and you know you've always wanted to point a machine of destruction into the forest and just watch it tumble.
The only part that might take some operator skill or experience is the switch backs and steep hill work. In order to make the road serviceable and so that it doesn't wash out you will need to do a couple things right.