Leyla, out of curiousity what was the original HJ chassis number in the HZ ute. It sounds like the same story as the ute I have been trying to track down for years. I have a HJ sandman shell that's chassis and GTS parts were put in a HZ ute 20+ years ago and my research has gone cold, the last info I could track it down to an owner in Murrurundi NSW about 15 years ago, HZ ute painted black with the HJ chassis for my sandman!