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.
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.