Hers what I see in your pics.. Nice score... I also see a horrible place to attach the ground cable to an exhaust manifold. That can kill a battery from heat traveling down the cable and overheat the battery. Might see a exhaust manifold bolt missing too but otherwise it sounds like a nice engine. Check the oil pan for a gasket. If you find Dealers installed a rubber or cork gasket remove it and use only rtv like the factory did. Resealing the oil cooler will never be easier that when the engine is out of any truck. Its just great insurance.
I'll check in the stuff you mentioned. Ill need to look for a write up on resealing the oil cooler, I have never done that before. The ground was done so we could crank the engine over with the starter while I was looking at it.