My wife and I did the same trip a few weeks ago.You will be better off with a grass strimmer than anything else as the old grave area was very overgrown. We spent several hours on our quest but discovered very little. However it was worth the trip to get a flavour of the area and see where the ancestors are laid to rest.
We had far more luck in Drybrook and the church was open . Make sure you have a note book,pen and camera . It was quite an emotional experience especially to be in the church where my g grandfather was baptised so many years ago. Have a great trip.
Nigel