I have for sale the Diesel Pusher pictured. $7000 obo
The roof was raised about a foot-and-a-half, making the ceiling the right height for someone 6'-2" to stand upright comfortably. The frame channels were cut as shown, spliced back together with 1-1/4" square tube welded/bolted into place with 1/8" flatbar welded in to mimic the flange on the spliced channel. The open sides were sheeted with 14ga steel and riveted into place, using marine adhesive to seal the seams, and all of the exposed steel was coated with primer to protect from rust.
The interior is a clean slate, with the exception of the window locations.
This was a project I was in the middle of three years ago when I ended up moving to Indiana for a job, but didn't end up returning to. My dad has been storing it for me, but it needs a new home now, unfortunately. I'll be back in Oregon for a little over a week late April/early May and could squeeze in showings if you'd like to take a look.