In case you can't find one in Dublin there's one for sale on Ebay (Buy it Now at ST£15.99) with two free figures - the ring only, without any figures, is £27.99 on Amazon! The Ebay seller has excellent feedback so should be trustworthy.
Smyths have these with the two figures for €21. From the web site, looks like Naas still have some in stock.
The one on EBay is €39 with UK shipping, cost to Ireland not indicated. I also wouldn't buy anything mail order from EBay now, chances of it not arriving in time are very high.