Interesting quest you're on.
I read about these books as well; he'd make a photobook of photographs he had taken through the production of the film and then give them out to everyone. Presumably hand printed by Herr Bridges too(??). It might be hard to convince someone to part with one of these!
Perhaps you'd have some luck by trying to get closer to people who've worked in cinema. APUG has never been a great bastion of motion picture film enthusiasts.
Best of luck,
C.h.