Hi Padraigh,
Sounds like a great plan to fill your time whilst you're in the
southwest of the country. Cork airport would be the obvious choice as it's right there where you want to be.
Please do use our accommodation search option and I would expect a lot of our community members to help out there too.
Galway is also an excellent place to visit as you have made it as far as the Cliffs of Moher and Doolin. It would add bit more city life to your trip. Having said that, don't try to cram too much in and not spend as much time as possible at each location.
Car hire will be available at the airport and you may also find the airline you use has some contacts too.
The route will be as you listed them in a clockwise rotation following the coast and the
Wild Atlantic Way.
I'm sure you will get some more help from our members on their own experiences and expertise.
Have a great time, and let us know how you got on.
Martin