Just something to consider in your plans.
"It is worth noting that the Act only refers to gold, not silver. I guess this is because gold is more compact, in value per weight/volume terms, and thus is easier to transport between countries in settlement of transactions. For example, one tonne of gold is equivalent to 75 tonnes of silver (at least at today’s prices). This is positive for silver, and one can imagine that in a gold confiscation scenario that people will flock to silver for wealth/inflation protection if they cannot achieve it with gold. It is therefore likely that the silver price will move rapidly upward relative to gold."
This is not a metals discussion, rather a legality issue. Keeping what is yours. Clearly, silver holders in Australia have better odds than gold holders of keeping it. I've known this for some time, but though it worthy to point out. If you are an Australian, hold you gold oversea's, silver locally.