I concur with bonnie brae. 15-20 years ago, those signed, numbered NYGs were available for about $125-150. The market went up for a few years, but it has since come down. Realistically, I'd put it solidly at $150, You might get $175 as you have a clean dust jacket with it.
Then again, I haven't bought any of these recently, so I'm not sure where the market is at.