Hi Paul. Pedders are closer to me here and they have this part from Whiteline. Drift Shop also has it. There is a different part for the R32 and the R33 diff. I have the second. They say that the second camber adjusting part (R33) will fit either diff without fouling a coilover. I was only getting the upper arm. These are of quality steel and are strong. I decided not to risk the eBay versions.
See
http://www.driftshop.com.au/suspension.htm