What's a 69 Dodge Dart /6 worth?

Thanks for all of the great advice. I was going to bring all of that up when we start to negotiate the price. The motor is shot, needs body work and no telling what else. He does not have the know-how to work on the car and I hate knowing that it is just sitting there. It's a good restorer or whatever I decide to do with it. I may fix it up for the wife.