Add extra file upload to my Admin interface

Hi Freelancers! I have an admin script that allows me to add various pieces of data to the DB. You can view a video of this in action here: [login to view URL] I want to also be able to add documents as uploads too. So for example on the news module as shown in the video I wish to be able to upload either 1 or multiple documents (.PDF, .DOC, .XLS etc). The upload must use the same uploader as already built in to my system (Blueimp) and these uploads will be dropped into a pre-defined folder. Uploads must take place before "submit" or "update" is clicked so they can be seen on the modal prior to an admin having to click (like adding an image does now in the demo). If the modal is closed before clicking the submit or update button then the upload should be abandoned and any files not added to the folder. The uploaded files should be displayed in a list in the modal with the trashcan icon beside them to allow deletion of each uploaded file if necessary. Each file should be named by its original filename with the option to change this to something else (similar to the image name field now). Upon deleting any files they should be removed from the DB and the folder. If anything here doesn't make sense please feel free to ask for clarification? I need you to start work immediately... Please let me know you understand this brief by stating that "this is easy". Please no time wasters. I will pay in full after completion and full testing of your work. You will work on my server and there will be no milestone payments. You can check my feedback and see that all work completed receives full and prompt payment. Thanks, James.