You have some catching up to do. Which version of the mono mix do you have? I've done 3 captures from the old tape; the first (released as an MP3 and FLAC) had some clipping, the second, synced up to the video from my laserdisc transfer, was a bit dull sounding. The last one, synced to the GOUT video, is probably the best until Belbucus delivers the restored version. (I made no attempt to reconstruct the missing sections or fix glitches, though).
And yeah, there was the pre-ANH bootleg with original subtitles, a couple of in-theatre recordings of the original 70mm soundtrack showed up (here and here).