Both of those have bootlegs I've spun perpetually since I got them, but no "real" recording. I almost said "Smile," but the Broadway score is so different I'm not sure how well I'd like it, and I find it hard to think of the musical at all without the warm synthesizer tones of the licensing recording of the revised score.
I just checked and found I have a CD of Sunset with Tammy Grimes .I was under the impression this was a reworking of Platinum with the same songs. Can anyone confirm or deny this?