Just wanted to chime in with a hearty thank you, h_h. I know from experience this is tedious (but often enjoyable) work, and that - unless you're getting paid for it - you must attend to it when life allows.
I've only recently been made aware of your project, when a friend ran a marathon of harmy's despecialized OT films - and I remarked afterwards how going back to 1977 sound was such a thrill for me. And I was pointed in the direction of this thread.
I'm very excited about your upcoming version 2, whenever you find the time and inspiration to complete it.
I saw Star Wars many times in '77 - but probably only 3 or 4 times in 70mm. Most of my 30 or so first-run viewings were 35mm mono, so I'm used to that more - and I confess to really enjoying the joke made by including "close the blast doors" that, as someone pointed out earlier, got a laugh every time.
But if you do an "alternate" mix, it's your baby completely. My hat's off to you, Sir, for the fantastic and frankly important work you are doing.