(Not so many pictures on this page since it's basically the reverse of the removal process. Nothing much new to see except my exciting orange paint...)
After waiting overnight for the new water pump to arrive I picked it up bright and early to begin the installation process. First order of business was to get a few coats of paint on the cleaned-up thermostat housing and on the new (not reman'd) pump. I used Chrysler Hemi-Orange thinking that would most closely match the color of my engine. Turns out it's a bit more red—maybe a Chevy red. Oh well, good enough until I rebuild it all and paint everything the proper AMC blue...
In painting the new pump I made sure to mask the impeller and gasket mating surface as well as the pulley wheel in the front. The pulley wheel isn't necessary to mask, I just thought it would look better. But the gasket mating surfaces must all be squeaky clean!
A couple months ago I replaced my alternator (again). The previous alternator was a badly reman'd unit and it died relatively quickly. This time I installed a proper name-brand Delco unit. Much better. But—here's the catch—I was over-zealous in tensioning the belt. This quickly led to bearing failure in the water pump. This manifested itself with a very strange noise I had difficulty identifying. Didn't sound like the usual water pump failure noise. After removing all of the belts and running the engine—and re-attaching belts/devices one at a time—it became obvious it was the water pump making the noise. And when I tried wiggling the fan blade there was far too much play fore and aft. Bearings for sure. So, new water pump again! Having done it all just a year ago things went quickly. No rusted or stubborn bolts, old gasket cleaned up easily, etc. All apart and back together in about three hours (including running to the store for new anti-freeze and a new radiator cap).
Let this be a lesson to you—don't over-tension your belts!