I was and have been planning to build a new van. I want to design it so a driver or team can stay out for a longer period of time in a van. What I had in mind was to buy a cut a way van with an extended wheelbase or maybe even stretch it to accommodate the length needed. Be it a single or dully. Behind the cab have a sleeper unit or your choosing then behind that a unicel box. When I get a whim I sometime act impulsively and pay the price later. I wanted to throw this out and get some feed back just as a precaution. If this is done will I still be under the DOT regulation and not have to run a log. I will keep the weight under 10K, or would I be better off upgrading to a C-unit All your thoughts and advice are welcome