First question is: Have you replaced the head gaskets recently? If so, are they mounted backwards? (This leads to overheating)
Aluminum vs copper/brass is one of those strongly held opinions. Arguments on both sides and I am not going there
I prefer the copper brass and ACP 3 row is reportedly of good quality. If made in USA is important, it is my understanding the only USA radiator currently available is made by U.S. Radiator. Here is a link to one I recently bought for a '66 with a "C" code 289. https://www.summitracing.com/parts/sdk-259-3?rrec=true
Unless your engine is highly tweaked, a factory clutch fan with shroud would be more than adequate and IMHO preferable to an electric fan set up.
On the water pump, I had an Edelbrock on my 390 and it worked very well for more than 16 years when I sold the car.