I mentioned once before on a previous post from you that I don't allow places to be named, so I am removing the reference and asking again that you not name breeders or kennels on the board. (this is a serious legal issue for me -- once someplace is named., very often someone is going to make a comment about them that I may not see, and may expose me and the person who posted to prosecution under Irish or international libel and defamation law).
I also listed some resources on your other post as well, on what to ask the individual breeders you approach about health testing, with cardiac testing being the priority, so go back and have a read of that post.
. Finding a good breeder takes time and research and health should be your top priority. I'd suggest calling the breed club (ikc.ie list them) and ask for a breeder *specifically* that cardiac tests. You could also try the breed club secretary in Northern Ireland.
I will say, now that I have deleted the name, that I am familiar with this kennel and would say anyone who uses such a URL to advertise dogs would frankly, worry me. I know this kennel failed to inform a family who took a puppy from them about anything about the breed or offer any advice or screen the family, causing the puppy to be a poor fit for the family, and it ended up coming into rescue at a young age and needing to be rehomed. I'd personally want a breeder to take the time to talk to prospective families about the breed, its health issues and personality, care and training.... and make sure the fit is right.
I understand the frustration of not knowing where to go but I'd start by talking at length to the breed club secretaries north and south and ask every breeder whose name they give you, the questions from the links I gave you. Then eliminate those who can't give acceptable answers. Often there's a waiting list to get a puppy from a good breeder.