Well, first I would find out what size coal is easily available in you area. Then I would try to figure out your need, according to the style and size of your home. Is it insulated? One floor, two floors, etc. Where will you be able to put it. Do you want something simple to maintain with only a few moving parts or something more high tech. How much heat output do you need.
The stoves you mentioned range from 48,000 to 92,000 BTU's and are all hand fired and will burn pea, nut, or stove coal and are easy to maintain and will work without power.
If you want to hook up domestic hot water, you are down to two choices. The Mark II or Mark III.
If you go with a stoker most of these will only burn coal that is smaller than pea coal and you will need power to run them unless you have battery back up or a generator. These are easy because there is no shaking of grates to be done. Just set it, load the hopper and empty the ash.
I like hand fired because they work without power. We loose power quite often and its nice to know we will still have heat.
Just some ideas of mine I think others will jump in with more.
I don't know anything about the Alaska Kodiak except what I read. People who own them seem to like them.
Just to name a few, Harmon, Alaska, Hitzer, Keystoker, Leisure line, are all good stoves. It all depends on your personal need and preference.