I suggest the Canon New F-1. That is the design that came out in 1981.
It might take some looking to find a spot-metering focusing screen, but they are out there.
If not for your requirement that the camera be "retro" style, I would suggest a Nikon N90s/N90x as a very capable and reliable camera that would fulfill your needs for much less than $400. Or a Nikon F100.