My word of advice: If towing anything past a pop-up, start out with a 3/4 ton as the bare minimum, and if the TT is anywhere near the capacity of a 250/2500, go up to a one ton.
Half-ton trucks are fine, but for a decent size TT (28 feet or longer with a full load), it will be pushing it, no matter what the ads on TV say. Plus, a 3/4 ton truck will have the option of a fifth wheel hitch from the factory, as well as the ability to use a TC, if one chooses to go that route.
With two large dogs, standard poodle and greyhound, Thay were a major factor in deciding between a trailer or motor home. We really wantede aplace for them to travel without being in a truck cab with us, but would mot even consiter leaving them in a closed, non-AC trailer while we travel. Ours travel in their cloth travel creates, on the bed in the back. They do not like to ride loose, they are more comfortable in their rooms, and we leave their doors unzipped most of the time. After one hard stop, the greyhound slit out of her crate, so we usually zip n ehrm in when moving.
Noel and Betty Johnson 2005 GulfStream Ultra Supreme, 1 wife, 1 Poodle