Jonno said:

This leaves the 1999 DVD and the 1995 laser as the best sources for the original mixes.

I would say that some of the earlier Laserdiscs are probably even better sources for the original 35mm Dolby Stereo mix, due to being presented in PCM rather than the lossy AC-3 on the DVD. Like you said, the latest release to include it was probably the Special Widescreen Collector's Edition from '92.

Jonno said:

Our Mission Should We Choose To Accept It? Create a theatrical preservation using Blu-ray video and the two audio tracks from the earlier DVD and laser releases. We could go further and look at colour correcting the video too (since it's undeniably altered from the original release), but that rather depends on how much it bothers people - I personally don't mind it, but I know it's an issue for some. We might also include the 1999 commentary and production audio tracks, seeing as these didn't survive the transition to Quadrilogy nor Anthology releases.

I can probably do most of the actual assembly and authoring, but the one thing I don't have is that laserdisc mix. Let me know what progress you make there!

I thought they included the '99 commentary track on the Blu-ray? many reviews said so. Anyway, this sounds very nice Jonno, I will let you know as soon as I know more regarding the capture of the LD audio.