Thanks -- will try Autozone for the manual.
Rebuilt head, with new and improved seats, on order. Will drop the oil pan after getting the head off, to see what's up in there!
Exhaust manifold disconnected, but one stud in the center won't come out all the way (odd -- screws out easily, then seizes); have it soaking with WD-40. Now glad I had bought that Torx socket set not too long ago.
EGR valve and pipe out. Only one little flake of shiny metal in it, but might have come from the disintegrated tube-to-exhaust manifold gasket.
Double-checked all the lifters -- work fine.
Fuel injectors are resisting removal; swollen o-rings I'd guess. Fuel injector rail and hose look pristine, with Ford tag, so were likely replaced recently.