It certainly looks like HZ Sandman paint. You'd need to get me more ID or the photos of the ID plates to know for certain. If it is a HZ Holden van with full headlining it basically has to be a Sandman unless someone has put Holden tags on a Kingswood shell. I'd really love the ID for the database as if it is in Victoria it'll probably be a Dandenong car and i'm currently adding ALL Dandenong HZ's to the database, so chassis number, GVW and TRIM line is very important to that process.