Hi Jeff, welcome to the forum!
I am also not quite following your floorplan but I assume you want to heat about 1200 sqft with the fireplace on the main level. (The family room in the basement will not get any heat as the warm air will rise up not down.) You probably want to look for a medium size insert with a firebox size of 2 to 2.5 cu ft to heat that space in your climate. Plus, smaller stoves will give you heat for about 5 to 6 hours max; too short for overnight burns. The inserts you linked to were all falling short of that. Some inserts to take a look at (check the dimensions but your fireplace has a good size; I assume they will all fit):
http://www.regency-fire.com/Products/Wood/Wood-Inserts/I2400.aspx
(broken link removed to http://www.pacificenergy.net/pacificenergy/super_insert.php)
(broken link removed to http://www.drolet.ca/en/products/wood/escape-1800-i-wood-insert)
(broken link removed to http://www.napoleonfireplaces.com/products/1402-wood-burning-insert/)
Osburn 2000 or Matrix: (broken link removed to http://www.osburn-mfg.com/en/heaters/wood-inserts)
Enviro 1700 series:
http://www.enviro.com/fireplace-products/wood/fireplace-insert.html
(broken link removed to http://www.lopistoves.com/product-detail.aspx?model=303#specs-tab)
I have the PE Super insert and can highly recommend it. It gets some of the longest burn times for a medium-sized, non-catalytic insert, has a good convective loop even without the blowers running and one of the best baffle systems in the industry. Nevertheless, you will probably have to spend more than you anticipated regardless of the insert your chose unless you find a used one. Just to give you an idea: If you have the stove shop install it, you are looking at somewhere in the $4000 neighborhood. Probably around $800 less if you do the install yourself.
Your hearth is pretty deep already; if you get a flush or almost flush insert you may not have to extend the hearth; required clearance is 16". However, the less an insert protrudes into the room the more it will rely on the blower to get the heat distributed, which may not be so good during a power outage. There will certainly be a trade-off for you.
I would also recommend putting an insulated liner in your exterior chimney. You will have better draft and less creosote formation. In addition, a block-off plate (
https://www.hearth.com/econtent/index.php/articles/making_a_block_off_plate/ ) and putting Roxul around the insert will help with heat retention (
https://www.hearth.com/talk/threads/finally-got-around-to-insulating-my-fireplace.75755/ ).
Do you also have seasoned wood available already? All modern EPA-stoves require seasoned wood with moisture content of less than 20 % to run efficiently and safely. Most people here had very disappointing experiences when trying to buy truly seasoned wood and therefore dry it themselves by stacking it with lots of wind and sun exposure for 2 to 3 years before burning it. If you are committed to buy a stove I would take care of the wood ASAP.