So I finally did. And guess what? There's nothing there.
However, I did find something else...

Originally posted by: zombie84
None of these exist you guys. There has never been any extended or alternate ANH edits--to do so would require going back to the negative and re-striking a new edited IP. None of these things are in the script, in stills, in any sort of official source of movie deletions or the lengthy deleted scenes lists that even the official site has exhaustedly chronicled, and all people have is vague memories--just like years ago people by the hundred swore they saw the biggs footage on TV.
None of these exist you guys. There has never been any extended or alternate ANH edits--to do so would require going back to the negative and re-striking a new edited IP. None of these things are in the script, in stills, in any sort of official source of movie deletions or the lengthy deleted scenes lists that even the official site has exhaustedly chronicled, and all people have is vague memories--just like years ago people by the hundred swore they saw the biggs footage on TV.
There is about a 7 second clip of Luke and Biggs walking, but we don't hear any dialogue.
Download the clip here