Not a wizard, and my head already hurts after reading through it a couple of times. But from what I know:

The lower frame race and the top race nut you have are not Pista or later GS items and should take a 3/16th BB.

There are two different thickness fork crown races for Record headsets and you have the earlier thicker crown race there. Again, this should be 3/16th.

I suppose you could have a Pista fork crown race that would be 5/32, and it would sit deeper in the frame race but it would not match the frame race you have. Would it spin ok, I'm not sure?

If your bottom frame race does not have a <C> in it I suspect this would be why the fork crown race is sticking out so far. But I would still think it would work ok with the 3/16th BB's, but just not look correct.

So in summation I think you have an early thick fork crown race and a later lower frame race. Both are Record (Nuovo Record) and both should be 3/16th. The later thinner fork crown race is angled not rounded on the bottom.

That's the best I got.