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Nice to see the papers are intact and legible. Working on my 87 Monte Carlo we found the build sheet stuffed in the door. It was barely readable but so brittle that unfolding it caused it to just crumble. Unfortunately there was no saving it.
I have found that having an old car is a constant project that is never done. I think that is a good thing. Keeps me learning new things. Having two from different eras is just a form of higher education.