I am restoring a 1974 Javelin I purchaced new. It has been stored in a building since 1982 and driven about 1000 miles. I thought of putting a 360 that I took from a 78 Matador but decided to kept the 258. Now my question is how much trouble am I going to have installing factory air? I have purchased a dash, Weathe Eye control , condenser, dryer, pump, a/c coil box. No hoses or wiring will the ac wiring harness from a 6cyl. Concord or Hornet work?