A tt is probably your best bet. You might check into hybrids - kinda like a cross between a tt and a pop up. The weight is usually less, so you don't have to worry so much about the weight you are pulling. They are also shorter, making it easier to find campsites. Jayco makes some good ones and chances are you can find them used for a decent price. If the tt is small enough and light enough, you could get a mid-sized to large SUV or a passenger van to pull it, rather than a truck.
It sounds like a great way to spend the summer. Good luck, whatever you decide!
