If you have an aversion to AF lenses, it seems now that you have one exactly the way you prefer them. Sorry. Yes, back in the day, I only had to worry about the light meter and shutter failing in my Nikon F. Or, dropping it onto soft ground.
I have a Nikon F, and the weak spot in the lens is the aperture, grease liquefies and gets into it. On the body, the linkage from the aperture ring to the body freezes up from corrosion. It allowed interchangeable finders, but was a crappy design.