I looked up the model and got excited by the form of the body.
It looks derived from what the base was for my favorite trailer and layout, ever.
8-foot-6-inch package that felt like a 25 foot trailer. 1982 Coleman. Amazing pop-up tent trailer (if it hadn't been past its prime and due for $4,800 worth of canvases). (And if I had understood at the time just how great that floor plan was, I would still have it. An 8-foot-6 pop-up that could comfortably sleep 8(!) adults, with a furnace and space for a 5-day bag, each; without having to do the usual sin of storing gear on the stove or in the sink. And, somehow, it still had more storage space [accessible space!] than most modern 16-22' examples!)
But then I saw the floor plans for the 1706.
Sad. So much wasted space.
"Open" space sells pop up trailers based on the "open" feel, but with actual use people quickly realize that they would prefer visually cramped quarters that are usable, over "open" space that is useless.
I don't have any good ideas for salvaging what you have left, except for overly complicated hard panels that fold up/out, but probably won't fit inside when stowed; or just replacing canvases (which is never financially viable, unless you truly love the trailer).
If it were mine, I would dismantle and scrap it.
Repurpose or sell the furnace.
Sell the stove.
Sell the inverter.
Scrap the wiring.
Scrap and recycle the rest, after dismantling a piece at a time.
I have scrapped a few RVs and trailers. In most cases, the aluminum extrusions were worth almost as much as I paid for the trailer/RV. Furnaces, AC units, stoves, fridges, ASME propane tanks, copper plumbing, tires and wheels, lift mechanism parts, etc., were just icing.
The closest I ever came to "making money" on a frame was a 26' Class C Winnebago. I piled all of my junk generators and other useless boat anchors (from other scrapped garbage) on the chassis when it was hauled off, and got paid roughly $300 for three tons of garbage. Almost wasn't worth the effort.