The used unit you are looking at...is it the radiant stove model or the furnace unit? If it is just the radiant model, $1300 is pretty high as I paid $980 for mine brand new this past summer. I believe the furnace unit was about $1400 when I priced it out, so $1300 for a used furnace model wouldn't be too bad.
I have had my 82 burning since October 17th and it is performing flawlessly. Lots of heat, very even burns, and it shakes down easily. It will go 24 hrs between reloads but I have been giving it a light shake-down and top-off with fresh coal twice per day to keep the stove temp. consistent. I have been averaging about 40 lbs per day, although for the last two days the wind has been howling and I've used a little more.
As for heating the house from the basement, it is a challenge to move the heat upstairs with any stove. Unless you install some floor grates and some other registers to return cold air to the basement, you will likely end up with a hot basement and cold house. My stove is right next to the stairwell, which is in the middle of the house. A lot of heat travels up the stairs, but the basement still stays pretty warm. There is another member on here (sharkman8810) that has a model 82, he posted some pictures of the stove in this thread: Pictures of your stove
and some pictures of his custom-made heat collection cabinet here: http://nepacrossroads.com/post64248.html#p64248