(To spare you the novel, scroll straight to the end!
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I'm sorry to say, I've never done any colour film development or printing. I have kits on my ebay watchlist bookmarked, but they're so expensive that I've never bought any - it's particularly disheartening when you see everyone overseas talking about cheap $20 kits for a litre or ready access to even more economical bulk buys.
Right now, I can't even get any Sodium Sulphite or Hydroquinone to mix D76 and D72 for black and white work. Not available at Vanbar and the sulphite, particularly, I've been looking to buy in much larger quantities since it's about $22 for a kilo plus another $22 to have it sent an hour down the road to me.
I can get 25kg from South or Western Australia for $90 but haven't followed up on whether they'll even sell and send it to a private individual or how much shipping it will be. I've been procrastinating and flipping a coin endlessly on that one!
Just checked - waited too long to decide as they're now out of stock, too.
Someone who does have it wants $217.80.
Can you believe this is my short answer? ☺
It probably would have been more helpful had I simply directed you to the Australasian forum here. The most recent thread is about repairs and chemical purchases in Australia and adding your question in there might get you an answer that's actually of use! -