So I've compiled a list of all suggestions made from various threads on deep freeze winter trip prep...here it is:
1) check "T's" and other water system joints, replace with optional brass fittings
2) check coolant mixture for -34F at 50/50 mix ratio
3) change to colder temp oil (5w) synthetic
4) check washer fluid for cold temps
5) extra coolant, oil, break and steering fluids
6) extra gas (min. 5-gallon, 10 gal preferred)
7) spare coils (4-pack)
8) spare fuses
9) spare ignition assembly
10) spare serpentine belt
11) starter rebuild kit
12) Block heater preferred install in freeze plug, magnetic oil pan heater works too
13) battery blanket/heater
14) winter tires (Bridgestone blizzak or Nokian studded seem most often referenced)
15) tire repair kit with plugs and air pump
16) spare tire
17) tools
Any other suggestions?