I saw a first class, stock production that cut the Ball scene. Having never seen a first class production of "My Fair Lady" before, I felt truly gypped.
But about your production, what type of audience do you get? Are they theatrically savvy enough to notice that it was missing?
Will the rest of the show suffer if you blow a good deal of your budget on that one scene?
How scenery intense is your production? Because you could get away with using just a good set of double doors set in the curtains for her to make her entrance and cut the dancing. And you could scavenge the thrift shops in the area for old wedding dresses and prom dresses. When my group did "The Secret Garden" most of the women were dressed in old 1980s prom dresses with some ornamentation hot-glue-gunned to them.
Hope some of this helps.
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