What would you Pay GM for Official Documentation?

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Consider this thought for one moment. "G.M." Wakes up from their Coma and decides to help unlock the Mystery Shrouded around all their Desirable Cars of the Past. what would you as an Owner be willing to Pay for a "P.H.S." Type of Documentation for your Car, thus proving or disproving it's authenticity? (For those unfamiliar with this service, P.H.S.= Pontiac Historical Services Multi Page Report on a Car with info such as Options, Date of assembly, proof if it was a Real GTO stuff like that.)