Secure Private Environment Joomla (personal client portal/extranet)

I'm looking for weeks now for a Joomla component that meets my requirements. We would like to share "custom made" quotations, certificates, instructions for our clients (every client there own package of documents) We want to start a portal/extranet with the following: Create users in Joomla. Auto create folders (in ftp structure) with the username We will make a synchronize / cronjob of our own server that uploads files and folders to the portals clients private folder. e.g. [login to view URL]*username*/foldername/filename our clients can login and access there own private folder (and sub folders) , they can download there own documents in special folder (vault) existing in there own userfolder. Als a possibility, clients upload files in there own private folder Security check: The files should only be accessed by authorised (logged in users), because if they share an url like this: [login to view URL]*username*/foldername/[login to view URL] normaly anyone can download the file, this should be restricted! Maybe other option is to create temperarly conceal file's URL's? Summarized: Portal/extranet component for joomla were clients can login there own secure environment to download files. Structure of folders in ftp is important because we need to synchonizes our servers with the portal. Auto update environment files/folders after synchonosizing. User can upload own files in special vault SECURITY IS A BIG ISSUE! Only logged-in users can downloads and view there own files and folders in there personal environment! ======================= I found *and bought* some components that just don't meet my requirements: Extranet! works well, and does what it should be, but the folderstructure isn't there, the structure only excists in the component. in the FTP all levels (subdirectories) are in one directory. So we can't upload in batch from our own server... Easy folder Listing auto create folders when user logged in, but the url to a file is completly open. So no security! Docman does not have the folder permissions ( for each user) or you have to create nummerous groups in Joomla and assign manualy each folder to a user. Maybe can someone help me with a component? I think a great sollution is to make a hack for the component, Easy folder Listing Everything works automaticly, only the security isn't there... Maybe a script that checks if a user is logged in and access there own folder before they can access a file. Or create a temperarly conceal url? Please send me a suitable offer (Do not give a low offer price and that the final price is four times as high. Unfortunately already had several times.) If you have questions, please ask!