Thanks all for the reply. We completely understand the separation requirement, our 5er is great for that with the bunks all the way in the back, but the **** thing still rocks. We actually prefer the newer models with the nice drop down bunks up front, that come down far enough to hit the seats. But, our 15 year old daughter really wants her own space. The National design gave her that versus being in a hall.
Anyway, we just found a Newmar locally and even though the bunks are in the "hall", it's a nice unit, we all liked the layout and finish, so we plan to purchase it. This one will (fingers crossed) last us until she doesn't want to, or can't because or work, travel with us anymore. That makes me sad even typing it.