Obviously, you can't cross the arctic circle without the arctic package!
๐If you find a unit with it, that's great but for what you have suggested, it's definetly not required.
If after this trip, you expect to find yourself in very warm or very cold conditions, it's probably worth it. Just like with a house, better insualtion will result in lower heating and cooling bills.
If you travel with the weather staying in comfortable conditions (north in the summer and south in the winter), it's not needed.
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV