Just got a 69 'Cuda A57 383 4spd
great score!
I'd say worth about 8-10 grand unrestored in a strong economy.
My buddy has a black on black 69 fastback, 383, 4 spd, sure grip car.
He's the original owner, but the car is a total rust bucket from a long life in Minnesota.
Every body panel needs replaced or repaired due to rust.
He had some solid offers approaching 9-k but he will not budge and his is much, much worse off than yours.
P.S. that red fastback is really tough looking.