I am based in London -- not Australia -- but I gather the problem is no one knows of vascular surgeons in Sydney/Melbourne able to perform the prodecdure.
The person who tried a surgeon in Melbourne had a very bad experience.
There are VERY few people anywhere in the world with experience in CCSVI testing or surgery. My suggestion would be for you and your friends to ask a few facilities if they can perform the testing. You can download the doppler/MRV protocols required from the 'Research' thread.
You need radiologists for this, so a clinic that does MRIs/ultrasounds etc.