Hi Larry — I was able to do it and it worked out quite well. However it did rely on me knowing the material (and how it was organised) very well.
Basically, I started a new single library now using events in place of multiple libraries (and this time having it all link to an original media folder instead of copying everything).
Then I went into my old libraries and dragged the projects I wanted to the new library and within the proper event. I believe I may have had to fiddle with some of the clips to make a proper link to my original media folder.
That’s pretty much it. It’s much better organized (and easier to work with) now and I avoided duplicating files so it’s about half the size as well. Of course everything was backed up and stayed that way until I was convinced everything was working.
Andrew