RIch,
Not exactly sure what you are asking. If you are asking about validating a survivor car asking price: Survivor cars (<span style="font-style: italic">true survivor - not one of those "only repainted twice" and "everything in the interior is original except the carpet, door panels, and seat covers" [img]<<GRAEMLIN_URL>>/crazy.gif[/img]!!!!</span>) can fetch as much or more than the same car with a top tier restoration. There are different levels of survivor as Steve Shauger's (aka "paceme"
Survivor car determination process will show. Take a look at his methods of determination and definitions of the different levels of survivor in his posts. His setup is associated each year with MCACN! Can you tell us more about what exactly you are looking at?