Finally sorted. ~$600 for the rear bearings from CZP ~$250 for front from state wide. ~$520 for them to be fitted + service + boost leak test @ AHG Cannington. edit: car runs quite as, loving it. Now if i can just resolve the boost issue.
This is the latest pricing from Z1 shows all the components for the rear wheel hub, take off the rear wheel nut and it's approx $245 USD + POSTAGE or approx $264 AUD + Postage per side. http://www.z1motorsports.com/index.php?cPath=4_25_28
you wouldnt like driving my zed with the noisy wheel bearings trust me. The difference currently is amazing. That being said, they are not cheap cars to maintain but they are a lot of fun. I think my next car will be the xr6t ute, more power and more useful I'll keep plugging along with the zed for now.
total cost of getting LH & RH rear wheel bearings delivered to me at perth: $503.54 From www.z1motorsports.com not CZP as I previously said.