Varies, depending on what needs doing. Mine had a full service and repaint. The bridge pipe on one broke and some other pipe. The pipes were replaced for all of £25, which was a bargain, but it added extra. IIRC the brake service is £70 and the repaint was £30, but the best bet is to PM
el dude and ask directly. The guy has years of experience with Alcons on Fords and mine were his first venture in to Brembos and Seats, so we had some teething problems, but now he knows the quirks of these brakes it should be a smooth operation.
Oh, I meant to add; he replaced my pads for me while they were there too
If you get the Brembo decals of choice beforehand then he'd put them on for you too. I got mine afterward, hence why I'm applying them myself