If you are using the land you are getting value out of it. Why don't you want to pay for what you are using? Do you really think it will be a lot of money to use BLM land to park an RV? Go camp on Bundy land - I'm sure he will be cool with it.
I know you are frustrated by pork spending. VOTE. Get involved. Get those people out of office. The pork is going to happen unless you stop it. The people getting rich off the pork will keep it going unless you vote to make it stop. Cutting off the government money will just cut funding from things you use and won't effect pork.