i can provide the cc-ld audio.

i had a similar project in mind. but i wanted to drop the bd audio in favor for the cc-ld audio. for main part of "restoring" the movie i wanted to use the sony bd and just use the mgm dc bd for the extra footage. maybe andrea can also jump in to re-create the look of the criterion edition.

getting the pcm for theatrical cut would be sweet as well, so it can be used for the sony bd.

as for hd trailers, good luck. there is only the one trailer available in hd. i don't know which one it was, but i know for sure it was only one hd trailer available. i have it somewhere. if not, you may want to ask bendermac. he certainly has it.