Tahoe, Yukon, Expedition, or Armada to pull 32' TT

You can buy a 2500 series Suburban HD, but it's sold through fleet sales only, so you need a friendly dealer or a connection that actually buys fleet cars and is willing to help you. Interestingly, it's only rated to tow 3000 pounds, buts that's total BS that I would not hesitate to challenge. I see your wife says it's too long, but it's only 10 inches longer than a Tahoe.

http://www.gmfleet.com/chevrolet/suburban-hd-heavy-duty-suv.html