I think that is a lot to expect if you want to stop long enough to "smell the roses" or enjoy the country.
Driving (or riding) on the other side of the road is suprisingly intuitive, but just as you get used to it is when you have problems. I have found that arriving on Sunday is a bonus. Most flights arrive early in the morning, so that gives you some time with the road to yourself to get used to driving on the "other" side of the road.
We spent 10 days last year with a cage, and only enjoyed part of the country. I'm in Dublin tonight on business, and would love to get out tomorrow. But probably not going to happen.
If you like music, spend the night in Doolin, near the Cliffs of Moore, very worth the effort. Kinsale is my other favorite place. But it's Ireland, it doesn't get much better!