Well I got another email from Louise Stange-Wahl, who goes by "Weezie". Weezie is a former actress who was on the set of Star Trek: The Motion Picture, and has been looking for her uniform from that movie. As noted in my last post, it was a white sciences Class "D", size 8. But sadly, there has only been one example that has surfaced, and that was at Christie's. As noted on the forum, because many of these jumpsuits were converted to crewman uniforms for Star Trek II, it is quite possible that the white ones were the first to be used because they could be dyed easily.
Anyway, Weezie, has sent another photo and here it is!