Get two "Huakko 936" soldering stations for total of $19.43 delivered from local stock in a "buy 1, get 1 at 50% off" deal from power seller echoii_mall on ebay.
I call that a bargain at under $10 each if you split the purchase with a mate. The seller claims it is local stock with delivery in about 7-10 days. Units are described as 220V, but should be OK for 240V because the heating element is thermostatically controlled. The listing shows an overseas mains plug so you might need an adapter, although local stock could have an AU plug so it's worth a punt. These irons are a rip-off of the older style Hakko units and will take Hakko tips. You often see these branded as "Yihua 936".
If you only want one, the single unit price is $12.95 delivered from this seller, or $10.99 from new seller aigodeal who has a feedback rating of only 3 so far.
It's hard to understand how anyone makes money on these. The last time I bought one was from Hobby King for about $25. Judging by other prices of locally stocked Chinesium on ebay, I think stuff is now coming in from China in containers in bulk for local redistribution.