Do keep in mind that the recreated 70mm mix or any other GOUT-synched audio could not be used for a version that retained the SE visual effects in the end battle, because a lot of those shots have added laser blasts and engine sounds and other things that won't match up. To make it work those parts would have to be replaced with the actual SE mix.

It wouldn't be impossible to edit something like that together, of course, but the only way I'd ever be persuaded to do it would be to stop someone else from doing it incorrectly. :p