I can't imagine scores being too much of a problem since a lot of them are existing on TCM masters. Only a few had canned tracks from the 60s like He Who Gets Slapped and The Unholy Three, which really aren't that inappropriate. I do recall a version of Cleopatra shown on TCM with a fairly awful...
My main wants are silents and theatrical animation, as well as Around the World in 80 Days '56.
I do think Top Hat is probably a priority and Criterion releasing Swing Time first has probably more to do with it surviving with subpar elements, even though I think it's a slightly better film.