If I had a Nikon F2 that needed repairs or CLA I send it right off to Sover Wong. He's got my recommendations: fair prices, knows what he's talking about and can give you good advice when he gets your camera. He also provided some photos of the stripped-down camera, results from the check on my shutter speeds and gave me a 12 month warranty on the job.
He uses the Nikon factory repair manuals and calibrates your camera down to 1/4 of a stop (better than Nikons own specs). His site is sometimes down due to high traffic but don't worry, just check in a bit later. He also works on the meters. He did my Nikon F2 and the Photomic I have. Works like a charm.
He's based in Nottingham, UK, by the way.