Hi Constanza
Sorry for this late contribution, I have only just seen this. I am the process of uploaded the photos of St Michael East Ardsley to Yorkshire Indexers. The Hunter plot you are looking for is a double kerb grave at the rear of the church. Follow the path from the gate left, round to the rear, past the cremation area, past another 6 or so graves, and you will find it next to the path on your left. Please pm me if you want any more info/copies of photos.
There are 5 other Hunter memorials uploaded to Yorkshire Indexers so far. If you create a log in on the site you should be able to see and search the photo Gallery.
The numbering system I have used is per the Morley FHG MI's which follow the church's own plan, according to the vicar.
Pauline