Someone at one stage suggested a search on flickr for the term "holden sandman" or "Kingswood", "Statesman", "Caprice", "ute", "panelvan" etc. You'll get most (if not all) pics/scans of most of those brochures of the era there. Many can be blown-up quite successfully to A3 size and printed out from there.

May not help with stickers though.

Regards,

Dave