In my '83 Avion, I slept on the Couch/Bed by choice during House construction vs. either of the walk-through Single Mattresses mid-Chassis. The Seat was supported on horizontal, parallel 1"x2"s with long horizontal slots in them held together by Machine Screws, Washers and Wingnuts tightened 'just so'. At night, the bottom pulled forward. The Couch Back then set down horizontally on the same, minimal Lumber structure. The Seat cantilevered out a bit over the front from where it is supported vertically in the picture. There were no fold down legs on the Seat; none was needed. The Table shown on the right, with 2 insert Leafs not shown, folds down and out of the way while seating 6 optionally.
Both the Seat and Back had 1/4" Plywood backs that the Fabric-over-Foam zippered around. A piece[s] of Memory Foam on top would be sweet.
Under the Seat was very accessible, full-width storage forward to under the Window. LOTS of Plastic Bins or whatever - a Tank[?] - would fit.
In a CT, the little Shelf the Lamp and Deer Antlers sit on could hinge down flush, or be eliminated. I inherited the Couch stains w/Trailer purchase.
