The .floor plan is very important.
As far as problems...all rigs will have problems sooner or later and I would tend to lean towards the floor plan that Momma likes.
You don't know problems until Momma isn't happy.
2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS
Criticism is easier than Craftsmanship