1975 Nova- Need Your Opinion

Helping my Dad sell his 1975 Nova and I'm trying to gauge a fair market price. The only negatives to the car is that it's a 4 door/6 cylinder and the radio doesn't work. The Nova is a 2 owner (purchased by my Dad from his Aunt). I know this car isn't the "to die for" but it's a rare bird. I'm grateful for any feedback about approaching the sales price.

Positives:
-. ~17,000 original miles / 1,500 on the newly restored engine
-. Garage kept since original purchase
-. Original Motor restored from top to bottom
-. Engine compartment is restored to stock condition
-. High energy ignition system
-. New Radiator, steering linkage, poly bushings in all control arms
-. Power Steering
-. Manual Brakes: Front Disc/Rear Drum
-. New Radial Tires
-. Original Paper Work and paint color charts

Looks like a nice car, but unfortunately it has little or no market interest. Maybe 5k if you can find an interested buyer, maybe more if someone is focused on its originality.

Thanks for your reply. I appreciate it