I used to live near Bellerive (7018) and can confirm that the rego plate and rego number are correct for a 1974 vehicle. The Dept of Transport did not, and will not, register vehicles by names such as Sandman - only the usual Kingswood/Belmont etc - so perhaps that's why nothing is noted on the rego papers? Suggest you call "Motors" (previously Nettlefolds in the early days), which is the Holden dealer, and see if they can help you with records. Alternatively, find out where the man had his van serviced (odds on it was Motors, they even had a branch in Bellerive years ago) and see what their service records say. Well done! Nige