There are a fair few workshops with Kalmaker in OLD, just not many with V6 Stuff. TBS and ChipTorque have and Kalmaker is negotiating with BPS to start with V6 stuff as well. There are tuners in NSW - SAS and VIC Chipcontrol as well which are other options. Dick from Dicks Electronics or said he could fly up to you to tune if you require as well, so there are a fair few options
Hope this helps.
Regards
Tonsta