A mate managed to score a '42 Lithgow No1 MkIII* (all matching except for the heavy barrel) for $100 AUD. I haven't been lucky at all although I've spread the word.

After the amnesty ends on 31 May comes the big stick. Safe storage inspection

As soon as the amnesty ends the cops will be out and about (supposedly) inspecting everyones storage arrangements. As the letter politely points out "no leniency will be given should your safe storage facility be non compliant or should unregistered firearms be found in your possession following the conclusion of the amnesty".
I don't know what it means for anyone else but I've taken the better safe than sorry approach and have ordered a 14 gun safe that meets Category C requirements. Much more than I need but the extra capacity will come in handy and if they change the laws I should still be covered. My current safe is 1500cm x 750 cm x 400cm and packed to the rafters.