Have you considered syncing to GOUT the ANH 1130-85 bit-perfect rip audio that Darth Mallwalker posted alongside the ESB and ROTJ you have already done?
Those three tracks (taken from the Special Widescreen Edition) and the schorman13 bit-perfect rip 1977 stereo track recently posted would make a full set of LD diGital SOUND tracks prior to the 1993 THX DC and Faces releases.
Having heard the schorman13 track vs the current best available Belbucus equivalent is a revelation.
I expect that the three tracks Special Widescreen Edition tracks would equally be a revelation vs the current best available transfers.
Also a question. Were the Belbucus 93 audios basic transfers or bit-perfect rips?
Answered my own question. YES they were.
The 1130-85 audio would complete the set of available LD GOUT synced bit-perfect rips.