A busy but reasonable itinerary. Personally I'd spend a bit longer in fewer places as there is so much to see in each area.....but thankfully you aren't racing through one night stays all over. It's doable and reasonable.
The basics of the Dingle Peninsula can be done in two days. You could easily and fruitfully spend longer but two days will do. If you go to Doolin I'd do two nights....So you can have one day at the Cliffs of Moher and the Burren and on the other day a possible day trip to the Aran Islands.
On the ROK.....I strongly urge Kenmare, Sneem or Waterville over Killarney. Killarney is a major tourist trap/hub....on Ricks top ten in all of Europe. There are really great things to see right near Killarney but the town itself is best avoided for stays. The others will provide a wonderful Irish village/town experience.
Kinsale is a very nice place but not worth the time lost driving for a one night stay. If you stay in Kenmare you could use that day to easily explore a bit of the Beara peninsula or more time on the VERY worthy ROK and Skellig Ring area.
Minimize the driving when possible. You've put together a good plan. You'll see tons and not get too overextended. Just avoid the temptation to try adding one more thing, one more sight.....it is so counterproductive. You'll find tons of stuff to do and see in each area......your personal finds WILL be the highlight far more than the big sights. Time, allowing interactions with locals is a key. And ask the folks about things they recommend......we ended up seeing or going to our favorite trip spots as a result.
Also......nothing wrong at all with the Cliffs of Moher, they are beautiful.......but very touristy. If you are looking for wild, non touristy totally gorgeous cliff scenes........like in novels or the movies .....keep in mind the Cliffs of Kerry near Portmagee or the Cliffs of Kilkee in Clare are FAR superior to Moher.....and you'll be right near both.
Have a GREAT trip. Your itinerary is solid....you should be able to find the magic !!!!
