To me, it is simple. The PW Ford /Dodge widebodies are B+. The RT 200 is a C-. All currently called B+ motorhomes are C-. If it isn't a van conversion, then it can't be a B anything. All current B+ motorhomes are listed in RV books as Class C motorhomes. A B+ mh would be adding to a B, not taking away from a C, as the B+ mh do.
Where did the B+ designation for cutaway vans come from? and for what purpose - marketing?
No wonder so many newbies are confused as to what they are looking at at RV shows.
There - I've vented. I feel good now. Time to go for a run.