How much is my 74 Duster worth?

Im looking to sell my 1974 Gold Duster. I have enough projects and this one may have to go. So I was just trying to get an idea on a price to sell it at. This car was originally a slant 6, now it has a RHS headed 13.1 compression 360 magnum backed by a 904, 3500 stall converter and then a 4.56 geared sure grip 8 3/4. Has only been started up a few times(runs on E85). Has fuel cell in the trunk, high quality job done. Nothing is in the inside of the car, it is bare. Front suspension is completely redone and painted. Every single part in the front end has been replaced(brake lines,drums brakes, idler, pitman, control arms, lower ball joints, tie rods, brand new tires up front, like new et street radials in back), Converted the power steering to manual steering. Car has been fired about 3 times and it sounds great!! It has been sitting on jack stands. The bad: I call it the "Cruster" for a reason ;). It has lots of rust and a smashed in passenger fender. Here are a few pictures of what the body looks like and of the motor.
What would you give for this heap?
Thanks guys!:burnout: