My dad had one of these on his 1974 Toyota Hi-Lux pickup. A Moss Para Camper. Here is a drawing showing its use. It was a great accessory. Locked down, it smoothed out the airflow. With the sides up, bukly things could be carried in it. In high school dad sent me up to his parents’ place in Oregon with a gas refrigerator and a hide-a-bed couch. It was nice to camp in too. Lots of headroom so we could stand up. The tent was stowed in one side, and the table and a foam mattress for it was stowed in the other. We only used the table as a table, as there was never a need for a third bed. Unfortunately the truck was totalled in a collision (along with my knees) and dad sold the salvaged tent.
I was looking at a Toyota Tacoma Extended Cab a few years ago, as I no longer need the six-cylinder power of my Jeep but would find the open bed of a pick-up useful. I wondered if the Para Camper would fit. Only they no longer exist. Moss stopped making them years ago, and I’ve never seen one for sale. If I ever do get a pick-up, I may have to see if Omar the Tentmaker has a shop nearby.
I wonder why Moss stopped making the Para Camper, and why no one else (to my knowledge) has made something similar? A locking cover, versatile hauling, and a spacious tent make it a very useful accessory.