Value opinions? 1966 Coronet 440 model 4 door 318 2brl

As a kid I remember riding in these 64-68 Coronets with 383-413-440's. My dad was a police officer for Tampa Police Dept. The plain Jane vinyl interiors, the stale cigarette smell, and the raw power they had brings back fond memories. I've always wanted to build and old cop car clone like this one. Body seems to be in good shape by the pictures. I would offer him 2500 and see if he will take it. If not I still think it is worth the 3300.