Welcome to the forum Hermes. I notice that you also posted this question on a Facebook group.
To the best of my knowledge, there is no universal ley map of any country. There are a few localised ones around, compiled by individual researchers, but I don't know of any for Ireland.
However, as EEL has said, the more important question is why you want to use this energy to heal the country, what experience do you have in working with earth energies, why do you imagine that it is possible to do such a thing, and how do you propose to go about it?
This is not the first time someone has proposed such a scheme - in fact this is about the third one I've heard about in the last year or so. Personally I think it is rather egotistical to even think about doing this kind of thing - how do you know that it will be suitable for everyone and every situation?
I wrote a blog piece about this a while back that you might want to have a read of