Northshore,
If it's an old, no name camper it's not worth your time dismantling it. I cannot think of a single system that would be worth saving unless there was some brand new system installed. If so, take that out and take the rest to the dump.
About a decade ago I was driving down Tuna Canyon Road in Sunland, CA, a rather remote area as L.A. is not, when I spied 3 people pulled over at a small hiking trailhead parking area hovering around an ancient camper on a too small pickup. They looked suspicious to me as they were removing the tie downs. I think they had a piece of rope tied to a tree and the old TC and just drove off, as on my return up Tuna Cyn. Rd. I saw the old TC crumpled up along the side of the parking area. It sat there for a couple months and eventually some city refuse crew removed it.
jefe