Keep in mind though that the DiscoVision print would have the censored cut of the film that removes other scenes, notably when the Monster throws the little girl in the water. These scenes weren’t restored until 1986.
Ah! That’s very true. In all honesty, the restored 1987 LD should have better audio than the Discovision.
But, of course, by that same logic, the restored Blu-Ray should have the best audio of all! In the scenario that the audio of the Discovision is at all useful, the missing audio could be patched with another source, even the VHS audio, which, now having listened to your videos, sounds surprisingly good!