[Henning Serger]

What's the F5 numbers like?

AFAIK also in the 250,000 region.

How many do you Know of being used?

Personally I know about 10 using an F6. Lots of F6 shooters in the German Nikon forum, and at least nine have reported about shooting with one in the German aphog forum.
I wouldn't be surprised if the F6 is more popular in Germany and in Japan, compared to the US.

From my understanding about the F6 is that the shutter unit and body casting was designed alongside the D2/D3 era cameras,

Well, the shutter and the AF system of F6 and the D2 series were designed alongside, the bodies show some significant differences.

Even if the production was over 200 per month for the first few years 34,000 still seems very high.

Now in September, Photokina time, exactly eight years ago the F6 was introduced. About 34,000 F6 in eight years compared to about 250,000 F5 sold in eight years, that are not exceptionally high numbers I think, even considering the digital revolution in that time.

There were that many around, it increases the chances I can find one! Best regards

You should do, the camera is outstanding !

Best regards,
Henning