This collection of caches has nothing to do with the Church Micro series in the UK. Given that the Australian 2016 census indicates that No Religion and Jedi Knight are the fastest increasing classifications of the optional religion question "What is the person's religion?" it is not surprising that there is surfeit of empty churches that have been repurposed.
The Museum and Historical Reserve, formally the Roman Catholic Church of Our Lady of Perpetual Succour, was officially handed over to the community in a special service during the State Jubilee 150 celebrations on 2.11.1986. The museum and reserve are to be preserved, and are managed by, the Brinkworth History Group, a registered member of the History Trust of South Australia
To find this cache,
On the white plaque on the fron of the building use the year as ABCD
Cache is located at
S33 40.(B-1)(C+5)(A) e138 24.(A)(D)(D-4)
Check sum = 14 & 15
Happy Hunting