I am sure that you saw it, but there is a thread with a list of UK repairers there: (there was a url link here which no longer exists)
in case you fish out a useful address in there too.
I am a bit late to this thread but I have only just started up as an independent after working for Hasselblad for 38 years.
I specialise in service and repair of the Hasselblad V system, I am an experienced and qualified photographer and very much at home in the darkroom or in from of a scanner.
Just a follow up, I tried Douglas' services and had a body+back+lens serviced plus a couple of minor repairs done. It all came back as new so I'll be using his services again in the future.