I'm also writing a story set in Ireland (well, the beginning is in Ireland. It's about a girl who emigrates to America after the famine, so it's not like your story).
Anyway, I saw a book called an Irish Country Wedding when I worked at Barnes and Noble, and I've been meaning to look into it. I don't know a lot about the author, but when I saw what you were asking for, I thought of this. It seems to be set in the type of setting your describing.
I've recently read a book called the Yellow House by Patricia Falvey set in Ulster during World War I. It deals more with the turmoil Ireland was going through at the time, but the way she describes her country is beautiful. I hope that helps.