318 build

First off you cant put a 360 crank in. Cam selection is a mine field. Electric water pump, are you worried about that small of a HP loss. You can get them at Jegs Etc. Serpentine belt from crank from crank to Alt, you could probably get the pullies from a modern motor, but that small of a belt might be a issue. I would go with a v belt around the pump, crank and alt. Lifters new with cam rest of the valve train will work fine.