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.
Tintinara Good Shepherd Anglican church
Foundation stone laid by Mrs H R Becker. Also used for Catholic services from 1970. Recently closed and sold.
Check the front wall of the building. What is the condition of the stone work.
If crazy pave then the cache is at S 35° 52.809 E 140° 03.534
If regular blocks then the cache is at S 35° 52.534 E 140° 03.809