Bit of a blow to your plans there Ann. If you could work it somehow, and you are retired, you can still claim your Aussie pension. If you have worked here in Australia for 25 years, you get it subject to the usual means tests. If you have only worked here for 20 years, then its 4/5 the pension. I found a site and was just reading it all. Here is the site of agreements with a number of countries by australia.
http://www.fahcsia.gov.au/about-fahc...ity-agreements
Goodluck. Keith