Thanks Leve, that is the one I was thinking of!
No, the Top still wouldn't work. You would have to shorten it front to back. The CJ7 is approx 10" longer than the CJ5, and it's all in the tub. However, you could use the windshield and frame and get a later model CJ5 hardtop. Use the top of the CJ7 as trading material, or sell it for $ toward the CJ5 top.