Austarion

I have a 32mm Garrett wastegate. PART No. 5-200915-10 Control Pressure 69KPa (10PSI)

My diaphram has blown and need the parts. ATS in Adelaide has not been able to get the parts for the last six months so its off to the internet world to search if some one has one sitting on a shelf some where.

HELP! PLEASE HELP! (if you can)

I would consider buying a waste gate if it could definately fit with no modification.

That sounds like the Sigma turbo wastegate? Garrett in Sydney had some parts 5 months ago. Not sure the phone number you will have to look it up. I guess that's where ATS would buy them from anyway but what the hell give them a call.
Turbosmart make an adapter to use their wastegate. It's not listed on the web site you have to give them a call.