I want to combine an FTP and file web server onto a new server on Amazon AWS. There is approximately 76gb and about 47,000 files total of which we want them to be searchable. Most files are PDF's but there are mixed document types.

We really want an easy to maintain and update-able(for new file uploads) user interface accessible through a web browser. I have a small amount of experience with CMS's Concrete5 and Wordpress. I also have experience with HTML, CSS.

Unfortunately I need some help with what direction I need to take to accomplish this.. Can I use a CMS for this? What are my options? Should I learn PHP or something else to get this done efficiently? I have about 20 hours a month I could dedicate to this project.

Thanks in advance for any help!!