I'm looking at buying a 1980 Datsun 720 king cab 4x4 from a neighbor I grew up withs' son. It has 168461 miles, manual trans. It ran when parked 5 years ago when the owner passed away but has a radiator leak. I can find about every part imaginable for these trucks with simple Google searches, except a replacement radiator. Can someone point me in the right direction. Thanks!