OK, this here one just went up the pipe.
Air America converted their C-123Bs to Ks, so this paint is right for both versions.
I painted this plane way back when Vlad first released it, but in those days I didn't know how to enable reflections in a model, so the repaint looked more like silver paint than bare metal.
Now it looks like shiny natural metal, but since the alpha channel now controls reflections, I could no longer use it to disappear the wing tanks, which AA apparently never used.
I like the shiny finish enough to accept the drop tanks.