Sorry for your loss. I lost my dad a few months back. I remember him telling me story's of his 65 442. He sold that car when I was 6 or so. He bought a 66 cutlass to clone the 442 he had. Now I am going to finish the car as the one my dad talked about it. My cousin had to sell his father's 70 stage car to pay off some stuff. I am disappointed but I didn't have enough money to get it off him.
Thanks for sharing some history on your dad and his love of Buicks. My father gave me his GS before he passed and it has helped me stay connected to him. I hope you have a similar experience.