Europeans are so far ahead of us when it comes to camper vans, as opposed to RV's. It is true, though, that European campgrounds tend to have more amenities, such as spacious kitchen rooms with sinks, burners, counters, seating with tables and boiling water spigots. This room often becomes a social hub at night with a fireplace. With those amenities readily available and desireable, it's easier to KISS.
After having slept on it I find myself leaning even more toward your plan. I had assumed that a dinette was too much, but now I'm not so sure. If all goes well, the swivels will be installed this afternoon. Then I can play around with the idea. Coming at this from a truck tent, even KISS is going to be a palace. One thing I won't change, though, is my permanent bed. The head 2' will fold over to allow a passageway to the back, but I shouldn't have to remake it every day. I don't like making beds even at home.
I will post some pics when I get a mockup done.