I guess I got a bad taste in my mouth pulling with a 1/2 ton GMC. It was a great truck driving around town,
my TT dealer told me the truck could pull my new 24ft bumper pull trailer with no problems
Problem: never had to look at the gas gauge, because my eyes were always glued to the coolant temp gauge. The truck just did not have the cooling cap to handle that load. with a auto transmission your radiator is also cooling your transmission.
That was why I traded up to a gas 3/4 ton truck, the cooling system was so much bigger, plus more power to pull the trailer and was more stable on the road.
my latest truck purchase is a Dodge diesel 2500, now I feel comfortable pulling my new 27ft bumper pull trailer and I can stop the load in a reasonable distance.
most folks that use the truck for daily use do not want a long bed, but the longer the truck, the more stable the rig on the highway, so a double cab long bed would be the best tow vehicle.
notice that is the type truck used by most camper transporters.
we just got back from a trip up into the Smoky Mountains, do not remember seeing any 1/2 ton trucks pulling travel trailers up in that area.