I would think that the only one of the Dixons that would need remastering would be Thoughts. Cranked to 2 o'clock on my amp it sounds great, but it's recorded at what seems like a pretty low dynamic level considering what I know to be the dynamics of the music. If memory serves, Bill wasn't too happy with how it came out, but he liked to have his stereo at full volume anyway :-)
Also, the liner notes to these releases should be made available somewhere, as they are certainly part of the package (not to mention the beautiful covers).
Unfortunately, only Son of Sisyphus has liner notes--in tiny type. Also, only four of the CDs have replica back covers, so some of Dixon's artwork is not included. The other five have track titles and credits overset on faint images of the covers. Alan Silva and Mario Pavone are credited with "counterbasses" on November 1961.
"Counterbass" is straight repro of error on my original CD inner cover
As with the Haden box, the only one I've bought so far, looks like the artwork/notes weren't a high priority