First off i would say you should for sure check ebay for recent sales. As for posting on the strike side of the boards. And as with posting chips on the chip board. When you come up with your price range, be prepared to accept the lowest price. If two collectors don't want your goodie at the same time, no bidding war. When you list it for sale list as a Red Cap. That will get everyone attention right off. If you do have the red plastic cap that actually is a plus.

Best of luck to you.

Dennis