I just bought a Cannon T27(700lbs), I paid $100 to have it deleivered and moved into place, even in my rambler with just a few steps into the house, we/they used a stair lifting hand truck, made life alot easier but it still took 3 of us and hour+ to get into the back bedroom, I sure as hell wouldn't have wanted to try to get it out of a basement without an outside entry.
I bet if you call a safe company, they would come get it for free if you don't want to mess trying to sell it. If you sold it, its prolly worth $500-ish depending.
which one is it?
http://www.sportsmansteelsafes.com/frontier.htm
or you could keep it and fill it with gub