PHP, Ajax based App development with Facebook integration.

What we are looking at is a face book app which comes with random answers. NOTE: MAXIMUM BID IS 500 [login to view URL] More than 500 USD will not be considered. 1) a question with 12 options. the correct answer will be in a different option at every refresh or at every new game. 2) each question will have 12 options on 12 cards or card like interfaces. 3) we will have an answer box. where i can drag and drop the answer or the card( this on ajax functionality ). once dropped in the box. If the answer is correct at first try. i get 12 points. 2nd try 11, 3d try 10 and so on. 4) the user takes a set of .. let's say 5 questions. the overall points earned will have a random text to be [login to view URL]: 10 overall points-> you are good, 20 points-> you are better, 30 overall points-> you are brilliant. ( note: overall points are after taking all the questions in a particular quiz. example: quiz (1) question1 : 12 options : points earned question2 : 12 options : points earned .... .... question5 ............................ overall points: so many. 5)need an backend interface where i can add questions, and tags system like wordpress. as well. 6)facebook integration of this app, for publishing the results on wall. I am looking at the app development to be done in 5 days time. Please bid keeping that in mind.