Build a simple web application

Build a simple web application where a user can login with their Gmail account and fetch last 10 emails of their Inbox. Once the user is authenticated, Subject and Received Date & Time should be displayed in a list view. When user click on a single message of the list, details of the message should be displayed. (Sender, Recipient, Subject, Received Date & Time, Body) Instructions: 1. You must use Gmail API for the authentication and fetch emails of the user. 2. You must use PHP or Ruby as the programming language. 3. You may use any web framework as you preferred. 4. You may use simple styles to display the content in a proper manner. Its a requirement to use PHP or ruby please Can you start now and deliver in 2 days? Tell me the cost and time please