Convert a Template to a Website -- 2

I need two functionalities for my typo3 website. 1: Upload and sharing of pdf-files. Approximately 10 fields of info should be stored about the file (Author, year, subject etc). There should be a search function. Users should be able to see the pdf's according to their credentials (user group). 2: Almost the same as 1. In this case it's just groups of pictures and text-files. I don't think one of the available extension will do the without modifications, so you must know about typoscript. It will be a huge advantage if you done made something similar before (User upload and download based on credentials and storage of information in a database) I'm not looking for a beautiful layout, it's more the functionality. I would like this job to be done within 2 weeks. A more specific description is available.