Need to make a educational website for a professional institute

I need a website built with 20+ pages and design will be similar to: https://chemistry.stanford.edu/

Features required:
- Front page(new/announcements, events, current openings, research highlights, schools and centers, consultancy, campus)
- Separate HTML for header and footer
- Institute login(Dean, administration)
- Campus page(Gallery)
- Academics
- Research
- Admissions
- Schools and centers
- Menus(main menu, header menu, footer menu, quick links)
- Admin/backend in Drupal
- Getting the sections to life by taking up elements of DRUPAL
- Content management
- User management
- User Role management
- Slider content management
- Login/Signup
- Emails and its content management
- Files management

Need additional support for 6 months included and responsive design is a must.

Additional requirements:
- Graphic designing
- Newsletter design and setup
- Content writing

Also, person needs to tell about the entire team structure who will work on this.