The workprint already looks good! I’ve compiled a list of things I’ve noticed based on references from doubleofive’s comparison chart.

0:02:27:12 / 003540: The compositing on the TIE fighter appears to be the corrected SE one. I don’t know if you want to revert that to the original transparent form or…?
0:12:23:00 / 017832: This entire sequence is a relief to see again! Noticeable gate weave though.
0:14:30:11 / 020831: There’s a visible discolouring left by the subtitles. It lasts for a few frames.
0:33:57:18 / 048906: This shot seems a little fuzzy. Don’t know if it was like that in theatres. Might have been.
0:34:17:13 / 049381: Apparently this shot was just shades of tan, but I can see some blue sky. Is this exclusive to GOUT prints, or is the theatrical print like that?
0:36:10:23 / 052103: Noticing a few vertical lines (scratches) in this shot, just at the bottom-left corner.
0:36:15:10 / 052210: Possible healing error on the centre dune.
0:36:17:04 / 052252: Bit dusty.
0:45:05:15 / 064935: May be a 2004 recompsite: there is an odd vertical light element thru Obi-Wan’s head, which previously was a branch.
0:53:10:03 / 076563: The outline between Vader and the screen is smoothed - a 1997 correction. Again, don’t know if you want to keep or change that.
1:42:18:13 / 147325: 2011 R2. Presumably you already know about it, but I’m making a note of it here for completion’s sake. (also notice the colour’s a bit haywire here.)
1:56:17:20 / 167468: Looks like the redone Emperor’s shaft explosion.
2:04:35:13 / 179413: Noticeable gate weave for this and the next few shots.
2:06:20:18 / 181938: Gate weave noticeably stops just as the end credits appear. May be able to apply the HDTV final shot here, at least to a degree.

Other than that, great job!