Check out [broken link removed] and click on Free Trade - everything advertised is free just to pick up (mostly Dublin based though but you might be able to arrange transport if its worth your while), otherwise have a look at www.gumtree.ie and you might have some luck there.
It might be worth contacting any local kitchen suppliers or builders, to see if any of their current clients might be throwing out a kitchen during renovations.
When we got our kitchen done last year, our builders were amazed that I didn't want the old kitchen going into a skip. I put it in Buy & Sell and my phone was hopping for the week. I got €400 for it with no haggling or hassle, and I had the feeling that I could have got more.