Burl, the ideas are coming fast and furious. My DW is convinced that a total change is the way to go and said; "why do we need the dinette at all? we don't eat formally with a 'set' table when traveling. How about the flip up trays like the airlines have?".
I thought that was a stroke of genius. Now we are thinking about doing the 2 bed configuration like the BornFree Built for Two has.
How wide of an aisle is 'normal'?
Also, if I make one side a modified u-shape dinette, we can pedestal mount the table, and I can make drawers under the side where the sofa is now. I think the drivers side where the tank and electricals are will be pretty much filled.