Jason,
There is a lot of advice here, but there are some serious things missing.
Get and learn to use:
An older Laptop (Win7 is good)
A small inverter to run it underway
An Alfa OWUS 036 high power WiFi if you do not plan to carry internet
Street Atlas w/GPS puck - 2015 to 2012 will work but the charts get old fast these days (does not require internet at all)
Copies of:
Mountain Directory West (at least)
Camping with the Corps or Engineers
Learn to use the above before departure.
SA can plan your entire excursion and tell you where to look for an over night stop (App is RVParky) and fuel (App is GasBuddy) GasBuddy works best if collect Zip (US postal code with SA and put them in the search. SA can also be an enroute GPS if you have room in the cab.
It is a fact that no matter how carefully you plan, that plan will be junk before the end of the third day. Roll with it. A good navigator can unload a lot of the stress on a driver.
If your tow vehicle cannot indicate MPH, get a cheap standalone GPS for the driver and set it for MPH. You can also load the days trip in it and make things even easier.
Relax and enjoy the excursion.
Matt
