i got mine from Awesome GTi in Manchester last Friday (just few miles off juntion 11 of the M60). They did a really good job and for a great price! Mine was Non-Res but they will do REsonated ones too. Give them a call and say you were recommended from R32oc and they might do you a discount.
If you're in Yorkshire thats just a trip down the M62 for ya.
its just something they said when they were doing my invoice, they were mentioning they had put a 10% discount on it. Anyway, give them a call and see what price they can do for you, the work they do is good and they gave me a good price. Just an option for you Devilbat77