Hi, qon,
I can turn you on to the man who has the super quality trailer factory around here, he can craft about any style trailer you want,
been in biz many years, a real pro from Austria, and honest.
Don't know about converting the container, but maybe, as mentioned, he's a real pro.
I knew a guy in the states years ago that had a 20 foot container that was converted to a drivable rig.
One end was converted to something like a truck, or bus.
Powered by a big diesel motor, it had a bus/truck seat for the driver, big windshields, dashboard, stereo, the works. Really cool...
It was called a," Wolfgang". I believe that was the name of the company that made it.
My buddies, and whatever women we could reel in, had allot of fun runnin' around partyin' in that contraption.
This was back in the early 70's, so the fun, was real fun...
Anyway, you can PM me if you'd care too, many guys around Udon know this trailer manufacture fella, they'll all confirm what I've related too.
R/Doc