Build a Customer Portal onto a Wordpress Site

I need a basic customer portal added to an existing Wordpress site that shows folder structures and files for that customer. 1. Customer login page (customized, not Wordpress standard look or URLs) that redirects to that customer's home page 2. Display a customer home page showing customer logo 3. Display 4 sections on the customer home page - Policies & Procedures - Employee Data - Reports - Charts 4. Each section needs to show the file structure on the server at a parent folder level and show all sub-folders and documents. I found a jQuery plugin that seems ideal. Demo: [login to view URL] Plugin: [login to view URL] (the folder structures are dynamic and change frequently, so the code must explore the file structure afresh each time it is visited) 5. Ability for admin to create new customers, disable and delete 6. Ability for admin to create a customer id & password per company 7. Ability for admin to create a group id & password, and select multiple companies that belong to that group 8. If customer signs in with a group level id, then have a drop-down on the customer home page allowing user to select which company to be displayed (logo & files in the 4 sections) Note: You can use public or premium Wordpress plugins to make this work