O bombero,
My brother had a 3500. So technically not a medium duty It was legally registered, and it didn't have commercial plates. I haven't asked him about if it was registered as RV or just a standard motor car. I do know he said it took a lot of arguing.
I have never seen a e 450/550 class c stop at California scales. Nor any of the provan/tiger van motor homes.
The trick to having a medium duty registered as a rv. Is to buy new and have it drop shipped to your custom utility bed manufacturer. Then also have your camper drop shipped there and permanently mounted there. You are now registering a new class C.
I appreciate the info you have given. It is the area that I am still investigating. And a area that has given me great concern.
