I'm new here and not an expert but I would highly advise against towing a 30' trailer with a mid size truck. I did that years ago and lived to tell about it. If you try it, there is some white knuckle days in your future. While the MAX tow rating covers what you can tow, you are using the max and I would caution about getting close to max on anything. But, what bothers me the most is the 30' of cross section with a small tow vehicle. Tractor trailers will cause you to think you are driving on ice. The 1/2 ton trucks are almost as fuel effecient these days as the mid size and after you drive one for a month or so, you will be glad to have the extra room and mass. Just my opioion but when I read your post, I started having flash backs and had to say something.