I live on Kodiak, but am not a full homesteader. On one acre, we have all the wood we need (Sitka spruce) and grow a variety of vegetables, berries(salmonberries, blueberries, currants, gooseberries), and lots of perennial foods like rhubarb and horseradish, edible ferns, sunchokes, etc. Wish I had more sun areas!
We have both more sun and more soil than Southeast, by quite a bit. However, most seeds have to be started inside due to the cool soil and air temps. here- most seeds like 65-70 degree soil temperature to germinate, and we are fortunate to have those for AIR temps in midsummer! I was a master gardener in the States with many years experience, but I have had a very steep learning curve for gardening up here. and the slugs!!! Ick.
If you want to keep animals, running dogs are a problem in any peopled area. for cattle, one does better to be out on one of the smaller bearless islands. Yes, bears sometimes swim out to catch a deer, but infrequently.
Land is expensive near town due to most land here being owned by Federal, State, or Native corporations. There is cheaper land out remote- but you are generally talking about accessible only by skiff or floatplane. Only about 100 miles of roads on the whole island, which is about the size of Rhode Island and Delaware combined. The interior is trackless mountains.
One thing that does have to be factored in, and is not immediately noticeable is that Alaska is a lot more dangerous than the Lower 48. The saying goes "There are a lot of ways to die in Alaska!" For example, a day hike can be fatal due to abrupt weather changes, bears, unmarked trail. The sea water is so cold you can die in 15 minutes of exposure. We are at the end of the supply lines, so interruptions in barge shipments from Seattle, or the (frequent) closing of the airport due to weather can delay products, food, people and mail.
If you choose to live on the mainland, you have to deal with moose. Need a really big fence for that- 8X8 posts, and heavy wire 8-10 feet high. The best gardens I have seen have the garden of a size that the moose can't get a running start to go over the fence either from outside or inside. Berry bushes with thorns around the outside help also.
On the plus side, people here know we need other people, and tend to be much friendlier and helpful. Most people hunt, fish or do other hands-on things. ( I make jelly and trade.) Everyone has a dog, or two, or three. The fishing is great, as long as you like to eat (and clean, and can) lots of fish!