Soo, What do you do if the truck you need doesn't exist???

You building a convertible? lol

 

Looks like a whole lot of work however it also looks like you know what your doing like they say "when you want something done you got to do it yourself"

 

Good luck with your plans.

My fav project from the '80s .
Custom interior with KW gauges, custom milled cherry wood dash panel, reupholstered seats, custom built diamond tufted headliner, pleated upholstered doghouse, every gauge I could think of, replaced steel with polished aluminum fuel tanks, rerouted the exhaust, chrome side strips, diamond aluminum deck plate behind the cab, the whole 9 yards. It didn't haul anymore cars but it sure looked good! I wish I had more pictures.
Cost twice as much as expected, took 3 times longer than planned, the usual scenario.
BUT
You couldn't buy one at the IH store!

 

So what are you building Stan ?
I recently bought a 13 cascadia and love it ..roomy , quite and 7.3 mpg for the last 40k pulling a reefer .

 

Can't find a cabover that would work?

I mean, I'm sure you're gonna end up with a winner, but there's an awful lot of work involved in sectioning a sleeper. Or any other part of a vehicle body, for that matter.

 

Smaller than one of these? They don't have cabinets, the bed is right behind the seat.

Looks like yours will be a few inches shorter when it's done.

 

@KANSAS TRANSIT
When they extend a Volvo cab they don't cut the whole cab straight.
Cut it in a Z pattern.(the downward part off the Z is offcourse straight down,not at a angle)
So all the welds aren't in 1 line.