You VIN doesn't show up because the system only tracks them for 10 years. After that they are removed to keep data storage costs down, since after 10 years its odd for a car to show up at the dealer and/or for anyone to care about what was on the build sheet. Usually just enthusiast like us.
I doubt you will be able to locate a readable build sheet. Any particular reason you want to find one? Just to have it, or is there some particular piece of info you after?