After quite a long search, we found a great little, one owner, 1987 Toyota pickup truck! It is a very basic model with 22R engine with carburator, exactly the same as in our 84 Sunrader, which makes working on it much easier. Unlike the automatic in the Sunrader, it has a 4 speed manual tranny, I sure wish both did! It is amazingly clean and straight, no rust, even in the bed, which has been covered with a fiberglass canopy since new. It has 101,000 on it, and does, I believe, have the distictive timing chain clatter, so it, and possibly while it's apart, the water and oil pumps, will be replaced next week.
Since I have one of those small 8 foot foldable trailers, I'm thinking of reworking it as light as possible, with foot high sides with the same dimensions as the bed on the truck. Then I can switch the canopy to the trailer and hopefully, tow it behind the Sunrader for light stuff, like our mountain bikes, chairs and big dog. It should only weigh in at about 150 pounds plus what we put in it, say 300 pounds total at most. That can't be as heavy as the larger 20 foot model of the Sunrader, so seems like it should handle it ok. Think of it as a portable dog house, our big dog plus the two of us in the Sunrader is pretty tight quarters, especially at night! He's a husky/german shepherd cross and if it's over 60 degrees he tends to pant a lot! This shakes the whole rig like an earthquake! He also takes up 1/2 the floor space. We do have a well thought out hitch on our rig, so I'm not worried about frame issues.
Steve