I have used this guy in the past. He does about 50-75 rebuilds of water pumps, alternators, generators and starters a week shipping all over the US. I just had him rebuild both a starter and generator for a 1947 Dodge. The cost for the rebuild of each was $175. I don't know what it would be for your water pump but the owner has been in business since 1971 and when he gets something from an older vehicle he likes to do the rebuild himself. Both of my recent rebuilds he turned around in 2 days.
Hamilton's
