I came across this yesterday. The website is very comprehensive and well laid out. It deals with restoration and repair of Nikon F2 models (all) including the rebuilding of non operational metering heads.
The web contact is:- www.soverf2repair.webs.com
The engineer is based in UK but going by his web pages he has clients from all over the globe.
As he can claims he can repair non-working metering heads for F2 models, I have sent him an E Mail asking if he can do the same for Nikon F Photomic heads.