Need some help figuring out water pump/alternator solution

The stock style pumps work really well. For the aftermarket, I like the Milodon stuff. I have read where people have had trouble with 440 source housings and pumps being crappy castings. If it was me, I would look for a high quality aluminum housing like an MP if you can find one. Maybe Mancini sells them or another high quality brand. I am not sure MP still makes them. Keep in mind the housings come two ways. With a driver's side inlet or passenger's side inlet, so make sure you get the correct one.