Lol, we’ll Pete in the past most here that I remember reading about that had seen a similar manual with the Shelby number imprinted inside the cover stated that the kind thing to do was give it to the current owner, if current owner could be found, and just ask for postage.
That’s exactly what I would do. Money isn’t everything, to me anyway.
Wondering why anyone would pay any amount for a document that had a serial number/Shelby number inside the front cover unless their intention was to find the owner to connect it with owner.
JMO
Done here,
Stay Covid Safe