Newbie purchasing a Travel Trailer

We all like to stay on budget when we buy things but you mention quality and price range so it comes back to the old adage of you get what you pay for. A-liner is a good unit if you don't mind setting it up.....now, I do not own one but have looked at them while camping and chatted with the owners and they love them. Very simple to set up they tell me. Frontal size equals drag so with your tow vehicle limitations a pop up or A-liner type may be your best bet. There are options in solid sided units that will fit the bill too...AR ONE by StarCraft is one. One thing to keep in mind is how much room can you get by with in a unit. Things get pretty tight in a small unit real fast in my opinion but, to each his own. Its been mentioned already too that its PAYLOAD that is the main factor, not towing capacity. Good luck in your search.