Ron, did you end up getting a Mini? We are hauling ours in a 24' enclosed along with the motorcycle, so our set up probably won't help you.
A couple good things about the Mini as a toad is that they get very good MPG as a daily driver, most models weigh under 3,000 pounds, and even though they sit low to the ground the wheels are stretched out to the ends of the body so it is still difficult to drag.
Full Time in 2017 Newmar Ventana 4369
pulling a 24' enclosed (Mini Cooper/Harley/Kayak)
(traded 2014 Thor Challenger)
US Army 70-73 Retired LEO