I have that rip. The LD was rechanneled stereo. It was good rechanneled stereo, but it wasn't the original mono.
I do think there should be a better rip of the LD. A mono reconstruction track for the U.S. cut could be done if someone could just find a mono element for the American "Beatles to battle" ending. Two 16mm prints sold on eBay recently, but they were prohibitively expensive.
I've heard there are preservations of TV airings, but I don't know of any American ones. Anybody have the 1979 BBC preservation, who can say which cut it was? I'm assuming it was the UK, but you can never be too sure...