You could order a vinyl top in 69 on a Fastback. There is/was a 69 pink Mach 1 that does the judgerd shows up here that vinyl top on it. It has also been in Mustang Monthly sometime in the last 2 years.
I think the vinyl top was optional in 68 also. Somehow, like Playboy Pink, it just doesn't translate well on a fastback. I saw the article on the car you mentioned in MM a few years ago. Unusual but verrrry ugly.