i know i'm in belgium, but i just had new front discs @ €300 +vat and pads @ €100 +vat
so chances are it'll be more for an LCR as you've got brembos
fwiw, i paid €165 +vat and €65 +vat for rear discs and pads respectively
my labour charges are pretty low at €30/hr as my dealer has a 'special price'
so again change that for whatever the going rate is in the UK and there you have it.
bloody loads
also, this thread should be moved to the main forum