Are the airbags for leveling and additional weight, or are they essential to the main suspension system? IE: Will the spring setup handle the weight of the rig well if an airbag was incapacitated? I personally am a fan of airbags as supplements when needed, especially when the cradles let the airbag articulate off-road.
I assume the fuel tank is standard 34 gallon in 2012, what is your average MPG? I am guessing 275 - 300 mile range on roads with adequate reserves? What about MPG on logging roads, etc. where 4WD is engaged a good portion of the time?
The toilet looks like it is the package from FWC, it is cassette right?
I love this rig, so many nice features and upgrades!
You are correct the airbags are for leveling and additional weight. When I had the springs made I made sure the truck was fully loaded (fuel, water, etc.) so I wouldn't need the airbags. I usually just put 10-20 psi in the bags and with the daystar cradles have never had to worry about tearing them.
The tank is the standard 34 gallon tank, If I stick with 65 on the highway I can get 11-12 mpg. In 4wd it drops to around 9-10 mpg.
The toilet does come with the package from FWC and has the cassette which is accessed from outside of the camper. Pretty neat system, you turn on your water pump and it has an electric flush function. Also has electronic indicators for when the cassette is full.