My 62 had A/C so it had the fan and clutch. There are people who can rebuild the clutches better then new.
Water pumps are all over ebay. Get a rebuilt one and have a machine shop press your hub on to it. There are cast iron versions by Cardone 58-108 that would be more reliable. I would not use the D&D pulley as when you stray from stock, you are asking for problems.