It's so exciting to hear that you're planning to pop by for this visit.
There are a few options that may help you get to your hotel. Ryanair has a car hire
page on their website, which you may find useful. Another option includes these chauffeur companies
, which offer private drivers. One such company is Dublin Mini Coaches
& Chauffeur Drive, which offers transportation from Dublin across the isle of Ireland.
Since it is about a three or four-hour drive, I'd recommend checking with these options to find what their availability might be as well as their pricing options.
I hope some of our members, locals, and experts will be able to provide you with more tips and information. Please don't hesitate to reach out if there is anything else you need.