Er...your before pictures seem to be of the roof but your afters are of the trunk? '84 would have been the early days of clearcoat, but whether that is BC/CC or SS, that is some sort of paint failure.
Unfortunately, there's not much you can do once the clear coat fails like that.
Trying to spray more clear over it is going to be a exercise in frustration. You're better off reshooting the whole panel and blending it with the rest of the car.