Sounds like an awesome plugin! Thanks for the work.
I downloaded the zip but it won't install on calibre 6.13 on Windows 10.
This is the error I get.
calibre, version 6.13.0
ERROR: Unhandled exception: <b>InvalidPlugin</b>:The plugin in 'D:\\dnlds\\FicHub2Calibre-v0.0.1(1).zip' is invalid. It does not contain a top-level __init__.py file