Php coding and funtionalty require for existing site

Hi I have a site which is ready and working , I just need to some modification added few functionality as per client need. please read the project details below +++++++++++++++++++++++++++++++++++++++++++++++ ACCESS TO PAGES NB: Apart from the homepage (CRCSTreview) page, access to all other pages will require login. Access to “Try Saample question” is free but requires login Access to “Review Notes” requires subscription After user pays and subscribes, he should have access to “review notes” and be able to take a test twith questions from the full database. All logins , payments and user information will be available at the back end like we have today Users with 1 week subscription , will loose access to “take exams” and “review notes” page after 7 days. Same apply to subscribers for 4 weeks , they will lose access after 4 weeks If their subscription has expired, a page should pop up that alerts them that , their subscription has expired . Sorry, your subscription has expired. Please resubscribe for to gain access to the questions And fix the paypal payment system which id integrated. +++++++++++++++++++++++++++++++++++++++++++++++ I will give you the database and full word press file ftp access , just need to fix the issue and make the site accessible as per client requirement. The site link is : [login to view URL] Lime limit : Maximum: 7 days Attached the doc file Please only bid who are able to work successfully. and reasonable standard price. Thanks