Hi,
It's good to hear you're planning a trip to Ireland. Having had a look on Google,
RetroVentures is a company based in Ireland that has 125cc scooters, which might be of interest to you.
Another option, if you are open to it, is to rent a car. Our
Car Rental page has all of the information you need to rent a car while in Ireland.
How is your itinerary and planning coming along? If you have any other queries, don't hesitate to ask.
Regards,
Eoin