Well, assuming the above, if I was putting that on Craigslist, I'd ask about $250 for it, expecting to get $200-250. I could tell you more if I saw it up close.
If you expect to sell it at your garage sale, you're going to have to be prepared to take a lot less. There's not going to be many people that show up to your sale in the market for something like that...think maybe, MAYBE 1-2% of the people that show up. And they're not going to want to pay you much for it. You'll do much better on craigslist getting close to what it's worth.
EDIT: thinking about it, 1-2% is probably low, maybe very low...but most won't want to pay what it's worth. I know I expect to get stuff dirt cheap at garage sales.