1976 Feather Duster What is it worth????

I found a 1976 feather Duster. Car was a original bench seat car. The seat in the front is long gone. The original 6 cyl engine and trans are gone. Everything else appears to be there. Floors, trunk,frame ,inner fenders,and torsion bar area are very nice. No holes. Trunk lid has some issues as well as lower rear quarters. Grille and bumpers are present. It also comes with a 383 big block engine from carb to oil pan. Block year appears to be 65 or 85. The air cleaner I think said commando with chrome valve covers. The guy wants 1500.00 for the whole deal. Any advise would be appreciated. Thanks Tod Here is the vin VL29C6G136670 Fender tag also is present with the car.