Depends on how you look at it. In a sense, yes the certificate is validation that we are at least looking at a real Z28. I agree we would all want to see all the pages if we wanted to buy it, but for the purposes of the initial ad I think the first page of the certificate gets the point across. That point being that we are at minimum looking at a real Z28 and that obstacle can be checked off the list. If Jerry certified it you can at least be comfortable that the tag, and vin are correct and belong on the car. That alone is a huge plus considering there are about 50,000 69 Z28's floating around now, lol.
As far as the rest of the car, for the money he is asking, the rest of the report becomes more critical. I'm sure any interested party will be able to view the whole report and make their own mind. Just because we can't see it all in the add doesn't necessarily mean deception. Someone interested simply needs to look at the car closely.
Even with all the restoration mistakes, the one plus that I can take away from it, at least we are looking at an X77 that someone didn't add the exterior trim...