A d3 dozer or a shovel mate ....I've used both .lol
A chainsaw will get rid of the trees , get the stumps out if ya can ya don't want sh@t stickin out...but watch the dirt it will take the edge off ya saw in a minute.
As for the track ? ride a loop in and work out where ya want it to go... once you have sorted that clear any trees or crap in ya way ...then start makin booters
One thing for sure dozer or shovel it's one of my favourite pastimes .
