Was the Dolby Digital track in stereo? If the movie-only LD track was sharing the analog channels with the AC-3 track, it would only be in mono (but still might be worth having if the fidelity is better than the DVD's track).
Was the commentary track on the Director's Cut based on the one from the PSE but with new material recorded for the extended footage, or is it a completely separate commentary with the same people, à la Robocop?
I will add my voice to the multitudes chiming in: this is a really exciting project. While I have lamented the replacement of the theatrical with the Director's Cut, I didn't realize how much I missed this version until this thread.
It was, after all, the 1984 cut which won all o' them there awards.