I've never seen ANYTHING other than pics and of course the boot LP (that didn't include the Midnight Rambler encore). That was one of the first boot LPs I bought. I wouldn't be surprised if the band didn't keep something of it. I would love that tho because the set list is just great(IMO) and Taylor smokes. It also sported Mick and Keith's new haircuts!!
It was rumored to exist, primarily because of the Brown Sugar footage. However, as I understand it, that footage was filmed for news stations and after the first number, they had to stop filming.