Since you apparently are not planning to spend any time in Dublin, it is too bad that you are not flying in and out of Shannon instead. Csn you change your flight? As you have planned now, you will spend much of your day Monday driving to Dingle. Dingle deserves at bare minimun a whole day to itself. I agree with the others. Stay in Bunratty. We loved our stay at Bunratty Castle Mews B&B.
If you can change your flights, I would reccomend this:
Arrive Sat and drive to Doolin- see Cliffs of Moher, some of the Burren , then take a short nap so that you can enjoy the Trad music at the local pubs that eve. You will be tired from jet lag.
Sunday drive to Dingle via the Tarbert ferry. Maybe taking in the loophead drive before the ferry. Arrive in Dingle, enjoy an Eco-tour boat ride around the Blaskets and see Fungie the dolphin as you re enter the Dingle harbor. Enjoy the many pubs in town that night.
Monday - Drive the Slea Head loop on the peninsula. Use Ricks book for guiding your trip.
Tuesday - Head back towards Bunratty area. Visit Bunratty folk park, or Quin Abbey ruins in Quin, or shop in Ennis, or ???
You will see more and enjoy more if you are not racing clear across the country. Driving in Ireland is very slow. Killkenny is a great town - but if I had to choose I would spend more time in Dingle. Good luck!