Wordpress Plugin - Picture/Video Upload and management

Our new website is [login to view URL] It is WordPress site that we will be looking to upgrade to the newsest WordPress version soon. We want to create WordPress Plugin that allows a viewer of the website to upload a gallery of photos & videos. They then can add text and notes per uploaded item, and be able arrange these via drag and drop. They will also be able to manage these, add more items, delete items per gallery. They can have more then one gallery Frontend requirements - Viewer can Login (built in Wordpress login, so that we can use the features associated with that) to view their Galleries - Each viewer should have a Gallery profile they enter that at least contains Name, Phone, Email - They will have the options to create a new gallery, edit an existing one, or delete an existing one. They can have as many galleries as they like. - Gallery - Several sections the viewer can enter: - Gallery name - Gallery description - Upload photo/video (need to allow uploads of more then one photo/video at a time without crashing the system). Drag and drop from computer. - Photos/Video, once uploaded, would be shown together on the screen in a grid/tile format - Each photo/video needs to have a 'description' and 'notes' input that can be entered by viewer. - Uploaded photos/video need the ability to be arranged on the screen (drag the tiles and drop in the order the viewer wants). Always retain this new order whenever it is changed. No matter if viewer logs out and logins back in later. - All photo/videos can be easily add, edited, deleted by the viewer in each gallery Backend requirements - It is important that these be built as a 'plugin' for WordPress and can be installed/enabled/disable via the admin like normal plugins. - Admin will have an area the same as the front end with the ability to create, edit, and delete these galleries. - Gallery list will need to show Gallery name, User's Name, Date created and be sortable by these options - Once in a gallery Admin will have all the same features as the original viewer, add/edit/text/delete/arranging - Admin can download these uploaded files in one-of-two ways. Individually or as a zip of all files at once. There is a possibility the client will want more work done on this project as they see it. If this happens we will increase the hours/budget that you will be getting to do this project. We will discuss individually any of these 'change requests' if they come around. ----------------------------------------------- General Notes: I'm located in the USA so all communication will be done via Freelancer chat window or emails. I'll answer as soon as I can but I might not see questions the same time you send them. Please be patient :) I'll try to keep on top of things This site is not live yet, so can be worked on directly. I want to make sure this works as a Wordpress plugin, so I can install/uninstall it, etc.