good question. its real easy to find popular classics like the corvette and mustang, but i was searching at the best place for harnesses. http://www.painlesswiring.com/catalog.htm
painless makes it good and easy. but i saw nothing for the fairlane. you could try to budge in a mustang harness, you'll have to see if it is compatible, or what else might be. i dont think it'll be easy to get fairlane specific harnesses.