Alright Tom.
I've just been to see him and he says that he has a fair bit on at the minute. If you'd like him to do it, he'll need the axe for at least a week so that he can fit it in. He said that the actual price to do the work will obvioulsy depend on the state of the frets at the minute, but a good guide price is about £70 with another £10 for replacing the nut (I think he said bone, he does the slotting himself).