Customization for opensource LMS or creating a new one

Before you continue reading, IMPORTANT: Dont waste my time if you can't deliver, Don't BID if you don't have a reputation of successful projects. You must have an experience of LMS to know what this project is about. If you don't then this job isn't for you. Sorry for being harsh, I don't have time and energy to waste. Also state if you will customize an opensource or you will build. Build an LMS Website modelled after some opensource scripts We would love to improve on Efrontlearning LMS, it is opensource and free and have most features we want already. We are open to other options however. [login to view URL] Voiceover, HTML text formatting, Create links for any documents Add quiz (exam), Add Power Point Content, Add PDF, Doc Content Bookmarks location in course. Add video to courses(Video format that is preffered) Voiceover (courses can be read aloud by a click). 2. Ecommerce Sell courses via Shopping cart. Voucher & discount support. We'll provide gateway API for checkout 3. Social extensions User Wall - show a stream of activity Facebook integration (Post to messages to user wall), Lesson & system timelines, Other people visibility (users can locate other users taking present course for a chat or group discussion) 4. Certifications Build and issue your own certifications [login to view URL] Management Full support for managing users. Custom user roles can be created depending on your needs Lessons, courses and categories Organize lessons by topic into categories. Bundle several lessons inside a course [login to view URL] tracking Several visual indications guide the user through the lesson and his current progress 7. Communication Private Inbox for Users, Send User Email, Notification Panel { Course announcements, Announcements publishing period Monthly/Daily/Weekly etc} Attach files to private messages or mass email. Audit trail of all communication [login to view URL] editors File manager & digital library Upload, organise, use and share files with any other system user, add files to courses, add content to quiz, add content to project desk. Dear Freelancer, as prove that you have read this message carefully. Please write "CAREFULLY" in your reply. [login to view URL] Custom reports, Track training completion percentage, Track exam scores, Track task assessment data Prioritise students dependent on grades, Export report data to Excel, Track users activity statistics, Learner progress report, course completion report, course materials access report. [login to view URL] builders Create tests by assembling questions from a question pool. Several types of questions can be created, used and re-used across multiple tests. Randomise Questions, Print quiz results, View quiz statistics, Quiz reports, Add media files into the questions, Retake quiz on failure [login to view URL] & usability Drag and drop components, select a new theme or the active components for your lesson. eFront is an elegant and flexible solution that does not look outdated [login to view URL] support eFront is a SCORM compatible and certified platform. SCORM content can be imported or exported from the system [login to view URL] Search for anything and anyone, anywhere inside the system 14. Projects Assign projects with deadlines to end-users and track their progress 15. Project Desk *Bookshelf - this will contain files (docs, pdf, txt) that have been uploaded by admin into *Voicemail - User can use this to setup reminders *File-Folder - User can save documents here and recall later *PinUp Note - User can write short notes here *Computer - User can view charts, pictures (uploaded by admin) 16. Surveys Create, share and analyze responses from people inside or outside your organization (post to facebook & twitter) *Kindly go through [login to view URL] [login to view URL] [login to view URL] PM if there are questions