This is not factory, the frame is from a 1300, look how short the tongue is. They gained ~18" of interior length, which allows a permanent double bunk bed arraignment up front. An actual 6 bed
Trillium. There are some flaws to the plan, which will require frame modifications. But let me make this clear, I think this is a brilliant idea!
I would have, (might do) it totally different though. Like I said, the frame will have to be longer up front. That way you could slice off the whole front, and move the lower corners forward too. Also, the trolly roof should have been extended in the middle, not the forward end. It would have been a bit more difficult, but clearly this guy has MAD skills!
The belly band is straight. I can't see any seams on the sides. The worst of it, that I can see is the flat spot on the roof where the trolly roof ends. But that is under lots of stress. I hope whoever buys this trailer, puts it indoors in the winter. Snow load is likely going to kill this trailer.
But I feel like I have had an epiphany. This is what the 5500 should have been. No bathroom. No wider. Just a 4500 from the front of the kitchen to the back, and a 1300 dinette on the front. All fibreglass furniture. On the 1300 end, (just forward of the door) instead of the upper shelf, have a fold down bunk, like in the brochure. In the back have the aluminum shelves. The kitchen might have a floor to ceiling closet on the forward end. That should help hold up the roof, and provide slightly more storage. Room for the six sleepers to sit, plus two guests, for dinner.
I have a new unattainable goal. This would be the final mod for me. So it will be a while.