No major personnel changes when he shifted labels.
There are some mighty good Lunceford sides from his Vocalion/Columbia sessions. You may not need everything on the box. This has a nice selection:
My recollection is that it leaves out some good ones that I would have included.
Do you mean this one?
If so, not to my knowledge. Much of the music has been issued on CD on other labels, but I don't think a CD version of this box was ever issued.