If you can find it for a decent price just get the Arista Records boxed set. The Anthology. The tracks are not restored and Return of the Jedi sounds rather muddy, but it is better to me than any noise reduced release. To me the best sounding Star Wars is both the first issued CD double release, and the same for Empire or the original vinyl releases. The best sounding Original Return of the Jedi was the cut down release on CD. Though i have not listened to them in years.

I have to say though other than youtube i have not listened to the Disney remasters. They supposedly restored return of the jedi from the original recording materials. But it is still the same release with missing tracks from the 1980s just restored.