If it's running and all things considered i.e., location of the bike, miles on the bike, etc, it should bring $6-800 (I did not add the word "cash" because that goes without saying) and I know some fine folks on this site may disagree, but there is an equal amount of fine folks on this site that will agree that these bikes are getting harder and harder to find. If you want to bring it back to stock, there is a ton of parts that builders are pulling off their bikes that can be purchased for near to nothing. I have headlight, signal lights, tank, fenders, side covers, gauges, tail lights, handlebars front and rear wheels for a bargain and I am only one of many.
This site is a great tool with some incredibly talented and generous enthusiast that are a pleasure to communicate with - 99.9% of my experiences on here have been great!!
Best of Luck!