I got one made by a guy who had a stall selling them in Lombard Street in the city centre , this would have been in 2013 , he was very good and as he didn’t have one made up of the street I wanted he made it for me and delivered it to my home , I THINK the price was around £50 if I remember correctly. The lettering tiles weren’t ceramic but you would never know unless you looked closely.
It’s been a while since I was in the city centre so I don’t know if he’s still there , you could also try one of the shops like Carrolls that sell Irish souvenirs.