My quest continues...
I've come across this 69GT which has been rennovated rather well with many nice features and one major downside.
69 Globetrotter - a set on Flickr
As you can see from the photos, the owner moved the side bath to the rear to add a tub/shower & porta-potty, removed the waste tank and in the process reduced the sleeping capacity to 2 (max 3 with an airmattress on the floor or additional mods to create a slideout/folding sleeping platform in the aisle).
The current asking price is $9500 which would be a bargain had the original floorplan/sleeping arrangements been retained.
I think I coud actually make this set-up work for me for 4-5 years before needing to get into something larger, but then there is the question of resale value with a limited set of interested buyers (singles, couples/no kids).