I posted this elsewhere, but it's probably more useful here:
Check out these guys:
https://www.lsc.com.au/page/Contact_Us/ They're a wholesale distributor who can probably put you in touch with someone local to get the super lube from.
For me, I've just ordered at $12 (inc GST) tube from a local supplier after getting the details from LSC. I'll be picking it up, so no postage cost.
And as an update - just picked it up, no problems.