67 BARRACUDA REAR WINDOW TRIM

I have a friend that has a 67 barracuda notchback. After i do the body & paint on it he wants to change the front & rear windows to 68-69 stainless trim. He was told that he couldnt do that for the rear. The 67 was by its self & the 68-69 barracuda rear window are different. He was told the 68-69 seals & trim are a different shape than the 67s. Has anyone done this ?