If I were to sell it, I would put in for $500 or OBO if you want maximum price. If the price is too high folks will let you know quickly via email or PMs (if you put it in the sell section of this forum for example). This may take awhile for it to sell.
If you want to sell it quickly, put an aggressive price and the gun will sell if you have decent pics and good descriptions of what exactly is in the package (history, number of rounds shot, original owner, etc.)
I sold my 66-3 with 2.5 inch barrel for around 500 dollars (can't remember the exact price) about 6 months ago and it came with the original box, unused tools, original grips and hogue, tyler T-grip, and Bianchi holster. I was the original owner and know I shot it very little.
Hope that helps....