Half ton trucks are not all properly equipped to handle RV's. To get the Camper package and the maximum load package, it might cost as much as $2800. You can tell when a truck has the option because they'll have more than 5 lug nuts. And they'll all have V-8 engines.
You really should limit your towing to whatever your truck us rated to tow--including passengers and all their stuff. Although modern V-6 engines have relatively high horsepower, only the Ford Ecoboost has the torque of the older model V-8 engines. And trailer towing requires torque at low rpm's.
If you're going to purchase a travel trailer, make sure it's not aluminum sided. They all have leaking problems at one time or another--usually in the corners. I rebuilt my old travel trailer's interior 2x due to leaks.