I need a small bumper-pull camper to go behind my '94 Ford Ranger 4x4 with 4 liter v6, auto trans, trailer brakes. The owner's manual rates the truck at pulling 3500#, minus 1% for every 1000 feet of elevation. I camp around 9-10000 feet. Am looking at a 1980 Fleetwood Wilderness 16 foot unit, owner does not know the weight of it. I'd like to stay under 2500#, is this the camper for me? Any guess at the weight of this unit? Thanks in advance from this newbie.