Hello,
We have reviewed the document that you have provided.
The estimated implementation time is about 8-10 weeks and the price is £9000.
We will implement this project using Symfony framework for PHP (MVC) for the LAMP architecture (Linux, Apache2, PHP5, MySQL5).
You will have a backend with a CMS admin area, where you can edit content without any technical knowledge.
You will find examples of our projects and their descriptions in our portfolio here at http://www.freelancer.com/u/devexpertsteam.html
Best Regards,
Andrei