With your climate you want to plan carefully, you don't want to be dinking around in the middle of winter trying to modify things.
There are a couple AK coops on here, at least one has rather extensive details IIRC.
advanced search>titles only> Alaska coop
That's a pretty good set up to start with, but it might take more than a 'couple weeks' to get it really ready for chickens unless you're very handy and have lots of time.
Your climate might make a huge difference in what you need to do. You can put your location in your profile and that can...