Isn't now the time to be exploring the low desert, where the highs will be in the low 70's? Instead, you are heading to high elevations where the highs are 50.
I doub't you'll need cold drinks; maybe propane heaters.
Be safe, regardless.
"This place fucking runs on beer, you buy the right person a beer, and you get a job, a blow, a place to sleep, whatever.
You're hot, cold, thirsty, hungry... beer will fix that.
Beer is a god damn miracle, and don't you forget it!"