I've been looking at used pop-ups and I've scared myself off from some because of my concern about towing capacity. I have a 2001 Nissan Xterra, 2wd, V6, automatic, Class III hitch. Towing capacity is listed as up to 5,000 lbs. Some of the popups I've looked at are pretty large, very roomy but with box length up to 12 ft. I've seen "dry weights" listed anywhere from 1800 up to 2300 lbs. - I know loaded they'll get heavier. The larger campers also have had electric brakes. Just wanting some opinions on how my Xterra might really perform towing these weights. They're welll below max, but I've never towed anything larger than a small boat.