Out of curiosity I just clicked on the link to the Host website to see more info on the camper referenced above:
http://www.hostcampers.com/subs/campers/camper_Aspen%20SB.html
Holy Center of gravity, Batman! They're showing that off on a lifted 4X4 chevy truck with what look to be at least 20" aftermarket rims? Call me conservative but I don't think I'd be comfortable driving that down the road. To get back to the original poster in this thread, you'll be fine if you just leave the truck stock.
I'd be curious to hear what the dually crowd (no offense) has to say after looking at that setup.
Joe
