Thanks so much for all of the advice! Super helpful!
Just another question about tie downs … I saw in another post where GaryB mentioned using CR-Brophy-Machine-Works-HSSF heavy duty tie downs. I’m guessing these will work for a pop up camper (around 1800 lbs)? I bought the camper off Craig’s list and the seller gave me tie downs that go into the pockets on the truck bed railing (not the clamp-on type). I’d prefer not to drill the holes in my truck bed rail if I don’t have to.