how rare is an 1976 duster 360 sunroof car !

I bought a yellow 1976 duster new in 1976. It was yellow with white interior. Bucket seats, center console with auto shift, sunroof, space saver package with fold down rear seat and trunk lid. It also had the 360 police engine with the 4 barrel carter carb, dual exhaust, no emission equipment and even burned leaded gas. I have never seen another one like it, even at that time. I was dumb enough to trade it in for a more fuel efficient car in 1980. I traded it in to koons chevrolet in tysons corner Va. You should keep it and fix it back up. I sure wish I could find my old one. My first new car!