We should swap stories. I did a regional production of "Funny Girl" with Kazan about 100 years ago. Diva does not even begin to describe her. I rarely use this word, but she's a cunt.
I adore Pat Carroll. I saw her one woman show as Gertrude Stein and she was magnificent. I've also seen her in "Nunsense" and you're right, the show can be very funny in the right hands but the sequels are just terrible. About the only memory I have of Ghostley in the show was her delivery of the line "Now, sister" when one of the nuns was taking too long to tell a story. It brought the house down. Just 2 words in her inimitable way: "Now, sister."