One more thing. I would still use a "wet on wet" sealer before shooting the base. On just the exterior, you should be able to cover that car with 2 quarts of quality base coat material. Original paint or not, it makes a huge difference.
Restoring a car to look "only" as good as the factory made it is like getting a boob job for your wife and having the doctor make them two different sizes to seem more natural
