Yes,,, just from a quick comparison...I would certainly go with the Focus. That higher R value not only helps in the heating, but the A/C also. Of course in Minn... you don't need the A/C to much I guess.
Don't think you will go wrong with it.
Camping is a great way to enjoy your family and make lots of beautiful memories. You will also meet the nicest people and make friends for a lifetime. Try and make some of the Heartland rallies or get together in your area also, lots of fun and good food.
Jim M