Few people on these Japanese sex doll hobby sites are willing to provide clues about their location. There may be some doll owners in Ireland, but I can’t think of anyone I can live there. Realistic full-size dolls are very expensive and take months to produce. The odds of ordering your own doll within your time frame are slim. You may find used dolls, but even this can be expensive. Then you either have to store the doll or resell her (or him) when you’re done. This is probably more work than it is worth.
Moving out of your parents’ home can be really eye-opening. Before you even consider buying a real sex doll, you should know how your life will be. Things you need, such as rent, food, and electricity, can get in the way of what you might want. Since you are not yet at work and your fiance does not have his own residence, your challenges may overwhelm your dreams. “Dream is more precious than gold”, but they don’t pay rent!