That sounds like a lovely hiking itinerary! Connemara is a great destination for nature walks in a truly unique landscape and the loop you have planned will take you to some interesting sites such as Kylemore Abbey
There are some useful resources you might like for planning future hikes or other outdoor activities around Ireland, for instance the Sport Ireland
website where you can find trails for hiking, cycling, horse riding and even kayaking!
I hope you'll have a wonderful hike. Please feel free to share your experiences of the trip, or let us know if there is anything else you'd like to know about the area.