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.
Willaston Methodist Church was closed in 2001. The building has since been repurposed with a great deal of love as a self-contained, 3-bedroom property known as THE CHURCH.
To find the cache complete the following coordinates with numbers from the building plaque above the door which can be seen from the footpath, and the nearby tree plaque (waypoint 2):
Numbers from the building plaque = ABCD
Number from the tree plaque = X
Final location s34 35.XBC e138 44.C(B/2)A
Checksum = 27