Joomla based CMS Complete Website developmet

A complete platform (Frontend/Backend) based on Joomla!, for users to manage, exchange and sell documents, both on individual and on suscription basis, that has to be developed from the ground, acording to very precise further especifications. ## Deliverables The main object is the "Document". Documents may initially be a file in pdf, doc, txt format to be uploaded by user, but finally all of them must be converted to plain txt, registered, categorized and tagged before be published and be accesible for other users. Want to provide users data storage, security, capacity for recovery and indexing their documents. And to take the most of their knowledge by exchanging or selling it. Suscriptions is my business. The developer must select already available components, even comercial ones -to reduce costs-, suitable to acomplish requirements. Also it will be necessary to develop at least one component to manage a credit system. It will require also template creation (clean, simple), available extensions integration, ad hoc component development. Pay Pal complete integration as secure payment platform, even money requests and suscriptions management, integrated administration. The code must be fully compliant implementation of the Jommla MVC pattern and the respective APIs. Absolutely Search Engine Optimized (SEO). Google oriented. Template is very important. Both for Front and BackEnd. Absolutely user friendly, up to date styled. Clear. A graphic draft will be provided for guidance. I'm lookig for top joomla designers and programmers capable of getting the most out of this CMS: experts in joomla design, joomla framework, joomla available extensions, joomla development, with verified professional skills and in search of excellence. Please, bid only if you really are one of them. Better a team than a solo freelance. Basic Project requirements (Much more specifications will be given). Complete frontend application for users to: a) Create and administrate an account. b) Upload, edit, and manage their owns documents, categorized. Private zone. c) Search all documents. Semantic search. MULTI Category listing. Access to other users documents requires money/exchange credit (individual basis) or an active suscription credential (temporal basis). Otherwise only can see some fields. Tag cloud. d) View document. (All fields). e) Exchange documents with other users using "exchange credit". f) Sell documents on individual basis. Complete backend application for administrator to: a) Admin. Users Accounts, including credit and suscriptions aspects. b) Admin./ Moderate / Edit Documents. c) Admin. Suscriptions. d) Admin. Payment Platform. e) Admin. Cost Accounting, Finantial Accounting and Analitical Accounting. f) View Statistics g) Manage Agreements (date, hour, IP included) The system must: a) Provide a semantic and very robust search engine with advanced search, and also a MULTI Categorized Directory of Contents b) Provide Control Access to other users documents (content) based on money credit, "exchange credit", or suscription credentials. c) Provide fully automatic management of all money and credit transactions, owner commissions, withdrawal, temporal suscriptions via PayPal platform. d) Drive user to the best experience with modules such us "Related content", "Last updates", etc. e) Intellectual property rights, its cesion, terms of conditions, legal aspects, personal data protection, must be integrated throghout all workflows. f) Multilingual. Easy managed. Althought Its going to be basically published in spanish and may be in english. Please sendme portfolio -only joomla based works please- to mgt at gastalverabogados.com. I will do a pre-selection of a few workers, whom I will send the complete project details so that they can make a more precise bid and delivery time.