look into the [url removed, login to view] and [url removed, login to view] redesign them to be multi classes system.
Not only that, please use your experience and creativity to make it like a sophisticated system.
Then you write a design doc to talk about this whole design and how each class works and the methods
Then Look into mvwb file, this contain structure of db,
talk about this design of the DB to explain how everything works
I think you kind of over price. Let's do it for $150 and if that take you more time, we can pay some extra, sounds ok?