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.
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Hamilton Uniting Church
Using Mr Priors phone number on sign at listed co-ords, calculate the following... S34 13.ABC E138 52.DEF
A - 7th digit
B - 6th digit
C - 1st digit
D - 3rd digit
E - 7th digit
F - 4th plus 5th digits
Checksum of decimals = 35