[JJaxon]

The reason I went with the big screen is that is necessary for their Navigation. I learned that the hard way with my 19` 3500. It really is a useful add on. Big tanks is a must. I like your idea of adding a brat seat in the bed, for any loud ones. ( :

I added Amp retractable side step, I may eventually get their rear retractable corner step. Installed the window tint, roll up tonneau cover, vent visors, mud flaps, spray in bed liner, and aux tank. Haven't thought of seat covers bc the seats have heating - cooling in the Laramie trim, and it work well.
I even hand waxed this big blue truck once. I'm done fore this year.
Sounds like you are about set up too.