Hello Steve,
I agree with Eoin above, any towns along the Wild Atlantic Way. You could fly into Cork or Shannon airports, so much easier and efficient than Dublin, and plan your route from there.
A few suggestions
Cork to Kinsale
Base yourselves in Kinsale as there is so much to do, Sailing, horse-riding, canoeing, pottery, arts, hiking, surfing and it is the Gourmet Capitol of Ireland ..which basically means great food
You can do day trips to West Cork from Kinsale
Kinsale - Kenmare Kerry
Dingle, Kerry
Galway -Aran Islands, Cliffs of Moher, Kylemore Abbey, great eating in Galway if you go nowhere else
Happy to help out if you need any more suggestions
Frances