JA, i can definitely get some to you, but it's for free, not for sale
There is an excellent source of GA-3 powder for all you plantheads: the famous JL HUDSON, SEEDSMAN, in California.
He & she are SERVICE providers to the world in many areas, including seeds as well as GA3 powder & kits (gloves, test tubes etc). Profit is absolutely minimal. Accepts PayPal; sends immediately. Will arrive in Sydney a week after you place the order. Faster than some LOCAL vendors
Support David and Sheri... support JL Hudson.
http://jlhudsonseeds.net/
And make sure to get their catalogue while you're at it. An amazing catalogue indeed... almost on a par with Richo's legendary Horizon Herbs tome.