Hi Bio Popo and welcome to the forum. I can't tell you where to get the Methanol in Melbourne from, but I can tell you that this post may go better in the Melbourne forum. Don't worry, I'll leave it in here for a day or two to see if anyone else can get better answers than me.
There is a Melbourne Biodiesel Club, who can help you out, but still I'd like to see the name/address/phone number of someone in Melbourne that can sell Methanol as well as some quantities/prices. Either way, it would be nice if someone who knows can post that up, as we are missing this info in here at the moment.
Have a look in the Melbourne section of the forum and you might find some more local help in there.
Cheers,
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