Our C.P. member Bernie is the the man to talk to. He worked there for many years as a mechanic and a few years ago i sold Bernie all my Gorries memorabilia that i collected since the 1980's. There might be something there to help you. Cheers.
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1957 Pontiac Pathfinder Deluxe sedan restored 261 six
1974 Chevrolet Caprice Estate wagon low mileage original 400 V-8
'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.