Thanks, after digging in the CBS log for a minute, I was thinking that was what you were doing, seeing the various absent packages.
Just puzzling that the Windows update troubleshooting can't recognize the orphaned files and kick the PC over to a full download with all packages.
In addition, couldn't I get those same packages, one by one until I had a complete compile of the update? I can see which ones are the problem in the CBS log.