Too Many Choices For Newcomer

For pulling a TT, forget the towing capacity number. You could probably pull a 10K boat, or a flat trailer loaded with 10K worth of cement blocks, but a travel trailer presents an enormous amount of frontal area (and thus wind resistance) in comparison, and has a greater percentage of tongue weight as well. With any half ton truck, the limit you will hit first when choosing a travel trailer is the cargo capacity of the truck. The Tundra's capacity is probably somewhere around 1500-1700 pounds. The door sticker will give you the number for your particular truck, and accounts for optional equipment. Does your truck have P rated tires, or LT tires? Transmission cooler? Factory tow package? What is your hitch receiver rated to carry?