I can verify, the Japanese dub in my collection is the “home video” dub, taken straight from the GOUT – this is just mislabeled here. Harmy uses my collection for a lot of his dubs, but he may be open to supplementing from other sources.
I generally don’t include more than one dub per language in my own collection, for space reasons. I opted for the home video dub because it’s a trilogy-complete, voice-matched set.
Yes, that is the best option.
However, it would be ideal to see the trilogy with the cast of the 1985 version. I wish they would broadcast it like Titanic.