Well, I am learning alot abnout very top end and expensive vehicles. All of these are out of my price range and I will bet, most of yours.
Kind of sounds like 4x trucks are limited especially if weighted down with even a pop up camper slide in.
I think the comment about roof top campers/tents was somewhat inaccurate though. The Autohome tents that I mentioned are light very high tech and super easy to set up and drop down. Try looking at them at www.autohomeus.com
Some look just like the old vw westfalia top, others are a straight lift. Both use pneumatic shocks to lift. Both are sided with goretex. All are protected by an upper and lower hard shell which can be made very light by using carbon fiber. All can be lifted off and set on the ground with their own legs. Some of the units actually have a rack on top for carrying kayaks etc.
It does get heavy though so 3 crossbars are needed. A self contained ladder allows access. They sell these babys in Jackson hole and down here in Denver. There is a fully contained bed inside with all the bedding pillows etc , pockets reading and lights.
In my world this would be a pretty sweet set up for even extended travel/camping.
My next question is what vehicle to mount this all on. I currently have a full sized Ford E-150. Good brakes plenty of power, incredible room inside (enough for 8 playboats and 8 boaters on short shuttles without even using the racks). It holds bikes, rafts, kitchen gear anything you want with ease.
But I don't get to go to those tough places like Crystal above Marble. Not sure I really want to run that stretch but it would be cool to get there anyway. I also don't want to pay for camping either and I bet that the end of those tough roads are the best place to be free of fees etc.
So, to get to a place like Crystal does one need a full on 4X to get there, or would one of the other SUV type vehicles have enough clearance, durability and guts to get up there with a full load of play toys?