Get yourself up north, huge savings to be got, fitted and balanced.
Recently bought 4 235/45/R17 Michelin Primacy tyres, 130 sterling a piece, at the time I was saving 50 euro a tyre compared to eiretyres.
After just checking eiretyres there, they have slashed prices, 40 and 50 euro off some tyres brings them into line with the north prices but you still need them fitted & balanced.
I happen to be up north regularly anyway so it makes sense buy up there.