Happy to help! This sounds like one of those things that if you didn't try, you'd regret it later on, no matter if it turns out good or bad.
UNLESS you come upon some new information in the near future to tell you to definitely NOT do it.
You might want to try visiting there in the winter before you sell everything here and leave - but yeah, I understand about wanting to get out of the heat and sun, esp after a bout with skin cancer. Since all your famliy is here, if you move up there and it doesn't work out, you will have an easier time coming back.
This is fucked up.