Apparently, there were a limited number of test screenings of the first film before it was released that were based on a workprint. I figure it's possible that a few people may have seen some of the deleted scenes this way. According to various reports, though, the workprint that was shown for the test screenings had almost no music and most of the ADR work was missing, including Darth Vader and Chewbacca's voices... so the audience heard David Prowse and Peter Mayhew performing the lines instead.

I guess a simulated workprint could be recreated using the deleted scenes on the blu-ray set but it would be missing most of the pre-foley and pre-ADR sound.

Also, what "She's Beautiful" line are you talking about, poita.