I have the same trailer, and I started off pulling it with a 1993 Ford E350 15 passenger van, with a 351 gas...Couldn't get over 50mph most of the time. Course, that van only has about a 6000 pound towing capacity. Just upgraded to a 2000 Ford Excursion Limited with the 7.3 PowerStroke diesel. Haven't pulled the camper with it yet, but I definitely will soon.
Very nice truck by the way, I too am jealous.