Of all the unreleased multichannel mixes, this is the one that I most want to hear. Of course I'd prefer to hear the original LPCM mix rather than than an SACD transcoding, but I'll take what I can get. Given the quality of the rest of ES's Steely Dan and Don Fagen mixes, and the degree to which Pretzel Logic kicks ass, one can only assume that this mix is phenomenal. Why, oh, why can't they (whoever they are) do a Kickstarter. There are many of us (myself included) who would pay whatever it costs to make this happen.
There are some interesting discussions here