Garry,
I LOVE the "just cast" look of the exhaust manifolds! So perfect in color, so flawless!
Though it wasn't perfectly clear in the photo, it looks like there is some corrosion on the water (coolant) hose connections behind the water pump? Better double check that. It appears that there is a lot of pitting from the photo, which makes a good seal difficult and also might indicate a bit of "punkiness" to the metal. I've had more than a few aluminum, zinc, and or magnesium parts crumble...