We bought a used one back in the 90's to see if we wanted to do a camper again. It was a 70's or early 80's. $500, it was rotten in the corners but still stable. It was an 8ft camper. Fully equipped. Water heater, 2 way fridge full bath... Light weight.
It had the best bathroom ever! The toilet actually folded up into the wall so you had the whole bath floor space. It had a flex tube that connected to the Black tank which was under the rear of the camper.
It was sad to send it to Dr. George for dismantling.
We bought our Bigfoot right after that.
Jim