What worries me is the bearing surface in the head, the last photo in the initial post. The other surfaces are smother and shinier.
These are the bearing caps (that are the top half of the bearing that I worry about... they look good.
and these surfaces at the other end of the camshaft are smooth and shiny.
Maybe I am panicking for nothing, but it is the first time I have noticed this on the four engines I have disassembled to this point.