Hello ..
I've read your project application, i'm ready to build a piece of php code which will retrieve all taxonomies ( or categories ) from a custom post type. i can do this within 1 - 2 hours or even less .. simply wp built in function to detect user logged in and add disabled class will do the second thing :)
For consideration, please take a moment to visit my profile, there are reviews and portfolio related wordpress there ..
Thank you ^_^, and
Regards,
Shelingholmes