Hello Graeme,
When I was restoring the last few 1969 Camaros I did, I found this article to be a great resource. It is on the CRG site written by John Hinckley.
It really dissects the assembly and painting process in great detail.
http://www.camaros.org/assemblyprocess.shtml
http://http://www.camaros.org/assemblyprocess.shtml
Paul