I know this doesn't help you but I had a 38' Mountain Aire that we loved.  When DW passed away I had a problem with the 6 steps going up into it.  I then bought a Roadtrek from my neighbor that is in great shape.  I went for a few days and it was too small so I got a hotel.  While in the hotel I looked at craigs list and found a GMC that I bought.  Don't feel confused.  I did sell the Mountain Aire before buying the GMC.   I will be using the Roadtrek until I get the GMC in shape.  I think I will be happy with the GMC.  Hopefully!