Sover is the man to repair Nikon F and F2. I've sent my F and two F2 cameras to him, as well as several finders.
First of all, Nikon SLRs have an indecent amount of foam seals inside, which will be decayed by now. Not only decayed, but often growing a mushroom farm of fungus. There is also foam around the pentaprism under the housing, which WILL REMOVE the silvering with time, as the foam decays and pulls away.
Sover is the ONLY repairman who will meticulously disassemble everything, remove and replace all the foam seals (except the ones over the pentaprism). I had my cameras worked on by "Nikon service experts" (not Pete Smith) here in the US, and when Sover opened them up, its as if nothing had been done.
Sover will not only clean everything and relube, he will send you photographs to document what he is doing. He will also adjust ALL shutter speeds to within 1/4 f/stop of the specified speed, and he will send you an EXCEL file with those speeds as tested. He also has custom made replacement parts, such as CdS cells for meters, ceramic resistors to replace the worn out carbon track resistors on a lot of meter heads. He overhauled a mint but non-functioning MD-3 for me by replacing the always cracked nylon gear with a brass replacement which he had custom made for him.
If you want your gear to survive another 50 years in fine working condition, you need to send it to Sover. Anyone in the USA will not do the same quality job, and you will be wasting your money.
BTW I do have Pete Smith's Nikkor Q 135mm f/3.5 (now AI'd). It too looks new.