Consider renting a car for the duration of the trip, which will give you more flexibility and access to off-the-beaten-path locations. Expect to pay around $500 for two weeks of car rental. Public transportation is available but may be limited in some areas. The total driving distance for this itinerary is approximately 1400 km.
If you have more time, consider adding a visit to the Aran Islands, the Dingle Peninsula, or the city of Waterford. If you have less time, skip the Connemara region or the Ring of Kerry. Keep in mind that Ireland's weather can be unpredictable, so come prepared with layers and rain gear. And don't forget to try the local cuisine, which includes hearty stews, fresh seafood, and of course, plenty of Guinness.