a word of caution: Keep a close eye on the radiator.
The radiator in my 87 looked solid, so when it developed a little pin hole leak, like you, I simply soldered it. The repair held, but a few days later, another leak appeared. I soldered the second leak, and wile pressure testing, another spot started to leak.
See a pattern here yet? After about two weeks of chasing the leaks around the radiator, I decided to just replace it and be done.
maroon 1987 Grand Wagoneer. stock for now...