Trail,
nothing against your Dart, but his is a slightly more disirable year, has a four gear in it, and has fuel injection and an 8 3/4. So though the body may not be great, it has a ton of upgrades that make the car worth more. However, in this market it is going to be hard to get what he is asking.
Good luck with the sale fenderman. I hope it goes to someone that knows what they are getting.