We had a 96 Roadtrek 190 with the layout like yours. We loved it and ordered a 2007 Roadtrek 210P with the same layout. In 2007, most of the new RTs had an electric couch across the back that made into a bed. We special ordered ours built with the "old style" twin beds with the two drawers between the twins. I believe that was also the first year that you could option a five cubic foot refrigerator.
For our use, we have never seen a better layout and that is the reason we still have that baby. I suspect we will keep it for as long as age and health allows us to have a rv.
Fortunately, we can store ours inside a HVAC controlled garage at our home and it is always ready to go. The inside storage has kept it in pristine, like new condition.
Other than the older RTs, I don't know of another B layed out like your 2001. We also, by the way, would hate to give up that Chevy chassis and 6L motor.
PSW
2013 Phoenix Cruiser 2350
2014 Jeep Cherokee behind it
and a 2007 Roadtrek 210P for touring