There are a now copies of the LP available overseas at Sorry State and Grave Mistake in the US, and Bis Aufs Messer and Static Shock Musik in Germany. Postage is fucking ridiculous from here these days so I suggest trying these places if you live outside Australia.
The Helta Skelta bigcartel has been taken down. In its place is the Helta Skelta Records bigcartel. You can find it here. http://heltaskeltarecords.bigcartel.com/ The remainder (about 20 or so) of the LPs are up there.