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 Willowie Lutheran Church was located at Booleroo Whim. Bethlehems Evangelical Lutheran built 1882. it closed in 1968. The cemetery still operates.
Using the year above the front door ABCD that can be seen from the footpath you can determine the nearby location of the geocache.
The cache can be found at: SS 32° 47.(A+D)(C-D)(B-A)' E 138° 21.AA(B-D)