call into your local ALDI, the wire was on sale about 2 months ago and there might still be a few boxes of it left. I picked up one box (two 450g rolls) of gasless wire in ALDI Carlow for €9 there this week. It was the last one they had and it was reduced to clear.
Halfords sell one 450g spool of gasless wire for €22, ALDI sell a box of two 450g spools for €16 and they clear the last few boxes at €9. It's cheap even at full price at ALDI...