Info Wanted: Does anybody know where I can get a copy of the script for the "The Sound of Music" movie?

I’m planning an edit of the script of The Sound of Music to more accurately represent the characters (mostly Capt von Trapp and Maria) and what actually happened according to The Story of the Von Trapp Family Singers (which, as fictionalized as it may be, is the most reliable source of info on the story). The problem is, though, that I can’t seem to find a copy of the 1965 script. Does anyone on this forum know where I can find a copy or have an electronic copy they can send me? It would be a huge help.

Thanks!