I would be interested in doing cleanup work on the 35mm audio.
From what I’ve heard of it, the main issues are crackling and popping due to damage at reel changes, as well as excessive noise throughout. I believe I’d be able to do something about both of these issues. I would also gain-match the audio so that the dialog sits at the same reference level it would have originally been mixed at.
I would need to have the audio at 24-bit resolution, with a sampling rate of at least 48 kHz. A higher rate might offer some advantages for the cleanup processing, although it would not contain any more detail within the audible frequency range. (Anything over 96 kHz is probably a waste.)
Let me know if you guys are interested in collaborating on this. I wouldn’t be able to start right away, since I’m currently working on the tracks for RotJ Despecialized 2.0, but I can get going after that is finished.