1970 RT/SE 440 six pack 4spd Challenger

I need some insight on this please. My father just passed and my brothers and I have all his cars to sell. We have many local guys interested and making us offers. I want to make sure we are getting a fair shake. This Challenger has been stored inside since 1976. It is plum crazy purple. It is a 440 six pack 4 speed car. We do not have the tranny or motor. We do have the six pack and shifter. Interior is all there and in really good shape, body is straight and no rust. Odometer has 58,000 miles on it. It has the smaller window in back and power windows. Any feedback would be helpful.
Author: Kona3503