I called on the Z28 and it sounded like a nice car. I'll be in the area next week and wanted to take a look, but it sold. It had some issues, the guy wanted $38,000.
As far as originality and the factory flaws, I love them and I love the original cars. Could be an acquired taste, but when I drive my 18,000 mile '67 big block, you really go back in time.