I would have to say that this depends on how you are thinking of scene, which has different definitions depending on who you ask. (I'm going off my recollection of Shakespeare from high school for what I think you might mean by scene.)
If I were to write a stage play, I'd probably view each of the 64 or 40 scenes you reference in your post as points of contention to be covered instead of as an actual stage scene. I say this because I'm fairly certain that the Scene in Dramatica is not the same as a traditional scene in any number of formats. In fact, I don't think either of those collections of points are actually a collection of Dramatica Scenes, but I could be wrong.
Instead of looking at it that way, though, you could try using the Signposts and Journeys, which would limit your scenes to 12 (if you focus on Journeys), 16 (if you focus on Signposts), or 28 (if you use both). Then, from that use the PSR to enhance the scenes you've written, or add some if needed.
One thing to keep in mind is that Hamlet (20 Scenes) and Romeo & Juliet (26 Scenes) are complete stories according to Dramatica, I think. I suspect that most of Shakespeare's plays are complete stories, actually. Though, I don't know which ones have analyses to confirm it.
I hope that helps, as much of it is conjecture.
(I'm a novelist, not a playwright, and I still have a lot to learn in the ways of Dramatica.)