Hello Louis,
It sounds like you have quite an adventure ahead of you! You are certainly right that it's wise to plan from A to Z.
I also see that Eoin has offered some amazing advice already, and I'd like to add to this by offering a link to our
Accommodations Finder. It's a wonderful tool that can help you find your home away from home here in Ireland. I've set it up to search for campsites in County Mayo, so you can find somewhere nearby. You can also filter for B&B's and other accommodation types, as well as change the location results.
Reaching out before you go will help ensure that you know all of your accommodations options, as well.
I do hope this helps!
Warmly,
Rochelle