[kgwdc]

I have a library of about 5,000 Kindle titles. Until recently, they were organized in several hundred Collections, primarily within the Kindle for PC (K4PC) app. That is, until I was told by Amazon's Kindle technicians one day recently that the count of titles on my K4PC didn't match my actual title count shown on Amazon's end, and that some of my K4PC files had become corrupt.

I was instructed by the techs to unregister the device, delete all the K4PC log and system files, uninstall, and then reinstall the program.

At that point, all the cataloging (ie. collections) I'd worked hard to create over hundreds of hours seemed to just disappear--despite assurances by the techs that it would still be resident in the cloud and could be resynced to my K4PC afterward.

To date, the Collections have not reappeared (much less the lists of books within those Collections)and many (most?) of the older books shown as downloaded in fact need to be removed from the device and redownloaded to open them.

Though the case is still open and supposedly being worked on by people in Kindle's tech support, I'm not only very frustrated but also pessimistic that we'll resolve the problem satisfactorily.

Meanwhile, a few years back I had downloaded and tested an early version of calibre--to evaluate and see how it worked. I stopped fairly early on when I realized that it created a duplicate file of every title I already had in my K4PC folder, and I couldn't tell which version housed my notes, highlights, or reading progress in them. Just seemed too confusing, so I set it aside and stuck with K4PC.

Now wondering if -- with some expert guidance -- there's a way I can (fairly) quickly recreate my Collections structure on calibre, port it over to my K4PC (and the Paperwhite, iPad, iPhone and Android Kindle apps I have installed), using it (calibre) to manage the library data, while only relying on K4PC as my "reader."

I have are a bunch of questions but not very much time, so I'm wondering if there is a "consultant" here (or elsewhere) who could help me through the situation, and get me up a learning and solution curve faster than muddling through on my own. I know my way around all the devices pretty well but extra time is something I don't have.

Any suggestions on a calibre expert who also knows their way around the various Kindle apps who could help with this at a reasonable price? And if not a specific person, suggestions on where I could find/post for them?

Thanks in advance.

Kip