Three things come to mind as you are planning/thinking about this:
1. Go ahead and get your wood supply now for next year and thereafter. Never to early to get wood and let it dry. My neighbor looks at my 5 cords of 2 year stacked and covered wood every day. Today he had a cord delivered by a local supplier, which I can guarantee is no under 20% moisture. This is just before Thanksgiving, no way he will have a clean or satisfying burn with that recent purchase. If you have 3 or 4 cords already cut, split and stacked, then good for you. If not put it on your schedule now as that may be just as important as what unit you select.
2. Consider your lifestyle. Do you have the time to gather wood. Tend the fire. Do you have kids or animals that can take time away from managing a stove. Some units like a Blaze King are 'set it and forget it' but may not have the visual appeal you desire. Others may look nice but require more attention to cutting the air intake, ash removal, loading and wood storage. Remember that this may be a commitment that you think sounds easy and then turn out to be more time than you expected.
3. Beware of the dark side of wood burning. Some get into this casually and then get consumed by how much they enjoy the warmth, the fuel and dollar savings, and the visual appeal of a fire constantly burning in ones house. If that is a possibility, then consider that when sizing a unit. Make it big enough to heat as much of the house as you can in the event you decide this is a really useful project and not just a weekend ambience element.
PS: House square footage is based on the above grade living area. Finished basements are never included in the living area calculation (even though they add value). You said a 5,000 square foot ranch, you really have a 2,800 sf ranch with a 2200 sf finished basement. That makes a big difference in descriptive terminology as well as helping advise as to potential units in your situation.