There's no advantage to crawling the yards looking for a used up radiator that's probably no better than what you have.
I can think of at least one. Years ago I helped a friend put a V8 into a Chevy Luv.
We measured out the available space for a radiator, hose locations and diameters then went to the boneyard and started measuring. Believe it or not but the radiator out of an A100 with a /6 met the needs, we bought it and used it for mockup purposes. Turns out it was in good enough shape just to keep using it. So for mock up it has it's uses.
