Looking to sell a '73 Duster, what do you think it's worth?

I traded for a '73 Duster 318 a while back to use as a parts car and I'm getting ready to sell it.

I grabbed the seats, interior panels, cluster, and wiper motor and linkage out of it. I also took the rear end and threw a 7 1/4 under the car.

This was a highly optioned car with A/C, electric grid-type rear defrost, map light, TF904 factory floor shift, and Tuff Wheel. It has a set of rallyes on it with center caps and trim rings. It's in pretty rough shape with the engine being partially dismantled about 15 years ago and it needs floors, trunk floor, quarters, and probably rockers. The engine and trans are still in it, as are the tuff wheel and complete floor shifter.

I know I could part out some of the more rare stuff, scrap it, and make a nice chunk of money, but I'd like to see it restored and have a guy that's interested in it...I'm not sure where to start on the price. Here are a few pictures I had on hand.