Trying to decide how to sell..

Hey so here's my situation. I own a 1971 Dodge Dart Swinger, and am wanting to sell but not sure how to go about it. I previously owned a 1970 Duster 340 4-spd car, which is the car I should have saved, but I wrecked it.. I knew I had to save its drivetrain, but what to do with it? So along comes this Dart, and into it goes ALL the Duster drivetrain parts. So here is my dilemma.. Do I sell the Dart as a running car, drivable with some repairs? Or am I better off to pull the engine & tranny, and group it together and sell as a 1970 Duster parts package? I do have all the stock engine parts, even the stuff l replaced with aftermarket (int/exh manifolds, dual point distr, etc.). 4-speed transmission, 3.23 posi rear end w/ Duster leaf springs
So what's your thoughts on how to go about it? And, what's it all worth?
Thanks!!