Looking forward to purchasing the new All Things Must Pass. I also have the original LPs. On a modern system they reveal much better SQ and less wall-of-sound congestion than is remembered from listening during the ’70s. However the somewhat thin spectral balance could use some help... and I agree that excessive surface noise is a problem. In 1971 Time magazine dubbed Harrison "the heaviest Beatle of them all," and so he was.
The original Brainwashed LP has great SQ on all counts, and for those who didn’t get the first release, this album stands up as a worthy coda.