I 'am no stove salesman by no means and wanting to get a big wood stove is the way to go ,
you need a stove that can load north/south , you will be able to maintain a hotter stove which in return puts out more heat. They are alot of big stoves out there I see that you like the looks of the country wood canyon 310 and quadfire 5700. have you looked at the buckstove model 91 it has a 4.4 cubic feet firebox and is a cataltic wood stove which will be good for long burn times . buck stoves are very popular were i live and are built in north carlonia they have a website www. buckstoves .com I wish that i would got alot bigger stove and the one in my den room having a bigger firebox mean a whole lot less loading hey xclimber here is the place i ordered my wood stove stove
www.hechlers.com they have a cool website were you can download stove information on the brands they sell, they sell blaze king, quad fire, buck stove, country stove, harman stove, and etc check them out good luck.