The 3029W has many nice features on it. The 2015 units have the new 7 cubic foot frig with blue LED lights.
Also there's exterior access storage under the bed- behind the electric fire place and under the dresser in the bedroom.
Pantry is a good size. If you order without the fireplace you get a large cabinet area for additional storage.
All the frameless windows crank out for great cross ventilation.
I know the brochure says this unit has a dry weight of 7263 but actual dry weights coming out are in the 7550# to 7700#. Add 1,000 more pounds for filed propane tanks, battery and all your stuff and food and you're just under 9,000# total. If your 1/2 ton truck is equipped with heavy duty towing you might be in the range.
Another unit we've looked over closely is the Rockwood 8310SS. Only 2 slides but a very open floor plan.