Write a website script

You need to write a script for the site
A book, with the possibility of adding text, pages, chapters and comments. Communications between commentators.
There's a T.
Requirements:
We discuss the nuances first, then we do.
The script must be PCP (and no other) it is possible to use Java scripts for small details
The page is in the usual sml.
We'll talk budgets.
There are a few more projects, but I will only suggest to the person who will do the project.