In my opinion I would forget about any truck in the 1/2T, 150/1500 class. If you are looking for a 2-4 person capacity camper then most small campers that will fit within a 150 truck will not provide the comfort for that many people.
Consider at a miniuminum a 250/2500 (except those with rear coil springs) and even consider stepping up to a 350/3500 truck.
You will need to consider more than just the posted weight of the DRY camper specs... water, food, camp chairs, firearms & ammo, fishing gear, bicycles, etc... whatever your rec activities dictate and add that weight to the truck carrying capacity... and it adds up quick!