paypal required with joomla+jomsocial(repost)(repost)

Hello, Currently i required one joomla developer for following updates. our joomla site consist jomsocial in user area, to provide several services to register users along with video upload, rate and search [login to view URL] site is basically based on video upload, and gift distribution [login to view URL] i required : 1- If user want to upload videos over site via own computer(hard disk), he first have to pay $1.99 via paypal( if want to participate in contest ), after that user get an unique id/number ( which is used in competition).Once user paid, and have unique id, user able to upload video from his/her computer/harddisk (limited size video allowed only) for other users to view it, and rate it. User uploaded, video is viewed by other users, users able to rate it, comment over [login to view URL] a certain interval of time (once in a month), we select that video (only from paid videos) which is most popular and rated/viewed by other users, on the basis of that, we select the winner. This circle keep going after once result is declaired. 2- Update the template, look and feel, graphics quality, make it cross paltform (viewable all type web browser proper way) This is small task for any joomla [login to view URL] details provided to selected provider. Max budget : $100. Thanks