Hi Paul,
I've owned a 190P for 10 years, and I don't want to give up the McDonald's drive through for coffee, egg mcmuffin.....
The first 5-6 years I used all of the storage including removing the third seat for storage. The last 4-5 years I do not need the storage of a 190P, so I would rather the spaciousness of the Pleasureway Lexor. If I lost my B today, I would end up with something over 9 feet. But if I had your application, I would find the outfit that would build what I wanted with the Express Van. There are more than one or two that can do it.
Have fun sorting it out.
Bud