Wordpress Contest form > S3 storage

Hi I need a plugin on WP doing the following job : Let people create account (easy) ask for 1/form information 2/ PDF upload for their project presentation 3/ upload of (large) image & video files with comments. Each media must have a simple description fields attached to it (eg. 255 char) We need to be SURE files are uploaded DIRECTLY to S3, not using WP server. Usually people uload Gigs of data at the very end of the contest and supercharge the server. it's around 100 to 200 people (not that much) but iploading high rez images and 1, 2 or moge Go video files. Security - We need files to be secured on AWS S3 (no easy direct link) - No sensitive data should be stored on WP (use server S3cmd oar amazon aws client, or js SDK, but credential cannot be just stored online on WP. In some cases data will be sensitive, attacks are possible, need to be secured well. In case people are not doint it all at very last time, they must be able to store information, and get bacj to their account to finish filling the info. Once info is valid (minimum required data) and people decide to submit data, or date is over, We must generate a Single file PDF for each people sowing : - Basic form info - embeded required PDF - thumbnails of pictures and videos with the attached comments. + clickable links to full size Images or videos in readable format (direct link if possible or embeded in site if possible)