Lots of reasons for the disclaimers. Mainly all testing was done with their products. Imagine the trouble shooting phone calls of customers trying to make there own stuff work. Also the ride height sensors connect to the arms and shocks are tuned for the air bags.
We put a kit on a diesel and put everything in the bed. We did 2 5 gallon tanks and 2 compressors. You will not be happy with less air unless you never plan on adjusting your suspension.
My customer also had a Rsi cap and a deck system. I didn't grab any inside bed pics.
Just do a rubber bed mat. I have one from DeeZee and gets the job done. I know several dealers that mark the plastic bedliners up because they are a pain in the ass to store and ship because of the size so they charge more for the hassle.
Damn, I'm running 40's on only a 3.5" lift and -38 offset wheels. Just had to trim the inner liners. Also the 6" R/C kit is very similar in height to other brands 4.5" lifts.
I used Peterson Chrysler Dodge Jeep Ram in Idaho. I worked with Kent. I flew up there stayed one night in a hotel. Dealer picked me up and was in and out in 45 mins and the way home.
I recently went 40s and was thinking the same thing. Time to ditch the stock spare. I'm thinking hard mount compressor and air tank for airing up faster, and maybe a small air horn for fun.
I ran 2 years with 4.10s and 37s. Regeared to 5.13 and regretted it, was way over geared was in 8th gear by 45mph. Now jumped to 40s and runs much better.