I think $500 in working condition provided the condition is at least average. Would need to see the backglass in order to provide a better estimate. A poor backglass reduces the potential value.
Another thing to consider is allowing shipping. If you open up your market beyond QC, you may find more buyers willing to buy it and pay for shipping.
If you do decide to sell on Pinside, please open a market ad. Or at the least, make a donation to Pinside if the game sells as a result of this thread.
Marcus