Create/Modify Wordpress plugin Wp-Pro-Quiz or similar - repost

Module level description USER MODE User Sign up Module: Users will be able to do sign up over the app through face book or email. Users have to fill following details during sign up with email: -Username -Email -Password(6 character minimum) Users have to enter username and password and email over the app during sign up process then user can proceed to the next page. On the next, page users have to enter their email and password over the app Save pw for auto login ( no clicking or typing to login) Sign up with facebook Module: User will be able to do sign up with facebook by entering their email and password over the app. User Login Module: Users will be able to do login over the app by entering their username and password. Home page Module: When user will login then user will be able to view home page where there will be multiple categories with their sub categories and users will be able to select any category based on most popular flashcards and recently played for current user. Topic Search Module: Users will be able to search for any topics over the app. Question Answer Module: Users will be able to view question and able to answer that question over the app. questions per round (search for other players like quizup and allow option while searching to play solo and earn a win based on average score for that set. Also add level up like quizup and match users by level (expanding level search with time) Users profile Module: Users will be able to manage their profile over the app. Design Specification The planned web solution would provide the modern, clean, elegant, and easy to navigate and user friendly layout with simple and attractive color scheme exactly as per the requirement so that it would be able to draw the user’s attention with prime and updated information available on it. We will provide exotic look for your application that will give eye catching appearance to users over the application. ADMINISTRATOR MODE Administrator Login Module Administrator will be able to login to administrative panel by using a provided username and password. Manage Flashcard Module Admin will be able to manage flashcard and able to import and change flashcard over the system and able to search flashcard. Manage Questions Module Admin will be able to manage all the questions over the system. Admin will be able to post/delete any question over the system. Content Management System Module Admin will be able to manage all the content over the app and able to add/edit/remove any content over the app. Budget Estimate:- $ 2000 USD Time Estimate:- 30 working days. My query:- 1. Do you want complete website only or want only plug-in from us? 2. If we make plug-in then how it will compatible with all mobile devices? 3. Do you have any existing website, where you want to use this plugin.