I don't know if the Fisher company is still making wood stoves, but I sure wish I had the Mama Bear that my grandparents had in their old house. Those were good stoves, and if you can find one used, grab it.
As far as cook stoves, modern cook stoves often do have large fireboxes (one or two have two fireboxes -- a small one for summer use, and a large one for winter when you want the heat), and most of them are airtight. If you can afford one -- they are EXPENSIVE -- and have the space, that's what I'd get. Some of them will heat a big house like yours. Antique wood cookstoves with a tiny firebox *can* heat a cabin or one room, but the fire needs constant tending, and they usually are not airtight. Often you can find a used antique that is still in good condition for not too much money -- generally, it's the white enameled ones built in the 1930's-1950's, because they aren't as 'pretty' as some of the fancy older ones with a lot of chrome on them. They fit well in a retro-style kitchen, though, and work great. A good set-up is to have an old cookstove with the small firebox in the kitchen and on the wall behind it, in the living room, and using the same chimney (but with separate flues), have a heating stove.
Ideally, if you can manage it, get a stove that has either a water jacket or coils for heating water, or a cook stove with a water reservoir (my preference would be for a reservoir AND coils to a free-standing tank next to the stove).
Kathleen