For star wars 2011/2004 audio I would honestly just use the 97 mix and just splice in the few content changes because the 2011 mix is basically just a horribly butchered 97 mix where they pulled every line of dialogue from a different source with very few content changes.
According to Ben Burtt, he went back to the original sources. And that much splicing of 5.1 audio is more work than it is worth. Except for Beru remaining unchanged, ANH is closer to the mono mix than any previous mix so it is closer to what I consider the definitive mix than the 97 SE.
Yeah but it sounds like garbage. Even the 93 mix sounds better. The dialogue is the biggest problem but there’s an overall harshness and shrill sound. There’s several scenes where every line of dialogue was pulled from a different source and SOME lines will sound fine then the very next line will sound terrible. Example: trash compactor scene. “Absolutely your worship look I had everything under control until you led us down here!” Sounds like it was from a battered cassette tape that’s been sitting in the heat since 1977, while the very next line (which occurs less than a second latero and by the same person) “you know it’s not gonna take them long…” sounds crystal clear. It’s extremely jarring. Perhaps it would be easier to just cut in the center channel from the 97 for scenes with those issues.