As someone who has worked with scripts in the past, I would replace them with normal CAPS.
In TV and movie scripts, character names are invariably in all caps wherever they appear, as are camera motions, transitions, etc. Other things like names of props, stage directions, etc. may be in all caps, depending on their importance and possibly depending on who the script is intended for. (For example, a script printed for the prop people might have names of props that need to be on stage in all caps, but this isn't needed in the copy for an actor.)
The details vary widely, of course. There's nothing approaching a standard, as far as I know.
If you have entire paragraphs in all caps, that's very unusual unless maybe it is a stage direction, and even then, it seems a little unusual to me, because all caps makes text harder to read.
Then again, that was my #1 gripe about teleprompters—most display text in all caps, which makes them harder to read than mixed-case. But I digress.
