I totally agree, we learn from all the survivor cars out there but no one knows for sure how EVERY car came off the line and if by some rare chance I am the proud owner of the ONLY Sequoia Green Camaro that left the factory with a body colored firewall and I go and paint it black because that's how the manual said it should be done, what good does that bring the hobby? I'm not saying that anyone should be able to do whatever they want and say "that's how it was!" There needs to be documentation of some sort. And this doesn’t even pertain to all aspects of the restoration, i.e., it would be very hard to prove any bolt on parts, even the dust shields, left the factory that way because they could have been changed at any time before the car was restored. In my case we're talking paint here, and when I bought the car, the paint on the firewall was original, and yes, to restore a car correctly, you replace as little as possible and put things back as close as possible to the way you found them.