Hi aussie!
There's generally no issues shipping to Australia. However there has been an aussie member here when they had chips shipped directly from CPC because the invoice / declaration was over a certain dollar amount, the shipment was held until GST was paid.
If you use a reshipping service or if a member sends you the chips directly, you can nominate the declared value and if under 1000 aud it shouldn't be subject to the same import charges/ gst