Closing this thread; the solution lies in itimpi's Calibre2Web covered at length
here. Does everything one could want in structuring a catalog, AND replicating entire library onto a web server for whatever reason (sharing where legal, remote access, backup, etc)
itimpi: Here's the true benefit that you haven't made clear to us:
Downloading a whole library to stanza is a ball-ache of note. But one would do it to gain the benefit of clicking 'subject' and getting an organised list. Now, your online storage is so sorted, and even more so. This means that you do not need to download to iPhone any more, but can keep the catalog online and just download 1 book at a time for reading, then delete when finished. Niiiiiiice!
Kudos to itimpi - especially for making it so darned easy to install and run!