If you're frugal, sounds like being a contractor or firefighter is the way to go if you want to have time to be outdoors.
There are a lot of self-employed guys on here too. Plumbers seem to do really well, especially if you can get to the place where you have guys working for you. That's what is really great - having your own business and having guys you trust carry things on when you are away hunting.
First, you have to learn a trade. I went out on my own after six years working for other investment firms. I don't have anyone working for me but my business is pretty portable and doesn't suffer if I take a week off here and there.