Completely agree with UM there. And if HK and SG are not enough, one can always fly to Tokyo over the weekend for less time and money than it costs to fly from Sydney to Perth/Darwin (as an example).
Hasbro items are also widely available here (but some pieces are strangely not seen), but with the Takara versions also widely available and at roughly the same price, there is very little reason to go for the Hasbro ones if one can wait a month or 2.
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UM, I'm just back from Tokyo/Hokkaido, but got your little note about meeting up. Let's aim for that over the course of this week or next if you are free?
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PS: Strange as it sounds, Hokkaido was amazing for G1 vintage TFs... amongst other good stuff, I got another Goodbye Convoy giftset is very near C9 condition with near complete paperworks... woot! Cost me less than what it would cost to get vintage C9 versions of Prime, Mirage and Red Alert on eBay...