Ok, sure your just looking to get the EMPTY camper home or some place to store it while you sort out getting a more capable truck.
I've seen folks use the Brophies or even two rachet-straps to hold a camper on the bed before. After all - how many miles of paved road are we talking about here?
My only REAL concern is what does your current truck have for rear tires?
Generally %100 of the campers weight is going to be on the rear tires so making sure they are rated well enough and inflated properly (usually 80PSI) to carry the camper would be my #1 concern.
BTW: 1/2T trucks don't usually come with very high rated tires.
- Mark0.