I've been thinking of doing the same thing. I got a couple rust bubbles under thr vinyl and thought a kustom painted top with some big metalflake would look sweet.Thanks for posting the pics. I've always liked these paint jobs. I remember seeing quite a few of them when I was a kid/teenager. There was someone who used to do them out of his garage, just living a few blocks from me back then. He did nice work.
I've considered doing this to my car. It needs a new vinyl top anyway, so I could do the vinyl, go with single color painted roof or do something like the cars above. I dunno. It will be awhile before I have to make that decision.