Whats the route you had in mind? I did 6states in 6 weeks solo, packed like this:
I used about 90% of it but it helps to put some stuff back, you don't need as much as you think you might.
Just off the top of my head:
Powerlet run from the switched accessory port: iPhone/GPS in Ram mount
Gerbings run directly from the battery.
Hennessy Hammock, -15 bag:
Jet Boil
Atlas
Bring an extra F'ing KEY! Don't ask me why>>>>
Gas bottles/cans
Upgraded roadside assist or a Spot device.
Ultralight camp chair
Fire starter
Glasses/contacts stuff
Earwax removal drops(I wore my ear phones the whole time, started to get an infection, staved it off by treating with OTC drops)
Wet Wipes
A big ass Knife
I'll remember a bunch more stuff.....