I don't think the color is correct, I was told it's a 1972 Cadillac color that is close but not the same.
Welcome and nice to see another 71 GM "CLAM SHELL" Looks very similar to my 1971 Chevy Kingswood, even down to the louvered tail gate. I'll post pic's of my wagon and you will see the similarities. These are awesome vehicles and not many around due to demo derby destruction and owner neglect. We need to maintain the few that are still alive and preserve this species of classic wagon. Wagon King