Rejetting may be "automatic"? Carbs measure air volume...not density...so the higher you go, the richer the mixture will be. This may help in winter. I lived near sea level, now my carbed 1984 lives at 3500'-4200' feet. Does Weber have a database?
Some people use stick-on-the-pan oil heaters to keep the oil warm. You can get an advantage if you can park your truck in a garage as you will notice a higher overnight temp if it is stored indoors. This keeps your coolant and battery warmer too, as the hot engine will heat the garage to some degree, and minimize heat-loss to the wind. Also, if this is your daily driver, a garaged truck is the sh*t...as long as you can get the garage door open. Frozen shut door handles, and iced windshields suck when your need to get to work on time!
Congrats on the move!