Random Questions

Thanks everyone. I have several inquiries out to bed manufacturers. anybody have a brand they like? One of my desires is to be able to carry a larger propane tank or tanks becaue we love our propane fire pit when camping plus would run the generator to run the air conditioning. Need to know weights before I decide which one to get as well as which series truck to get. Next question. How do you secure the camper if you drop it off for a couple dys of exploring with the truck off road? In the forest I could chain to a tree but what if I am in the desert? Thanks all!