519036 wordpress + facebook + contest script

I need to do a contest script using wordpress where users login only with their facebook account, they answer some questions, they get some points depending on their speed and it needs to go viral (autopost to users wall, invite, etc...). Simple task, simple idea, only i dont have time. please tell me also if you can do the content writing. More details available in PM. Keep your bids low, past experience is needed with WP and FB, specify in your bid the word WPFB or it will be deleted.