Jim,
I asked the same question recently, here is a link to that thread.
http://classracer.com/classforum/showthread.php?t=29815
Some thought it would be fine, others suggested avoiding it like the plague. I'm still researching......
The terrain you travel would probably be a little easier on the unit then my area. I've got a 24'Pace/68 Camaro that I'm towing and I think i'm going to probably end up looking for either a Duramax of Powerstroke diesel unit. Not 100% on that, but leaning that way.
Bob Unkefer