elearning website and software

Looking for a website and software to be built that is multilingual and that allows for the streaming of online courses and for the integration with translating API's. The solution will include both the web platform and all requirements to upload course content, to upload streaming videos, to play audio, a forum and store integration, the ability to rate courses, the ability to conduct surveys and to conduct exams. The ability to print certificates as required and the integration of virtual classrooms. A good example of a site that we like to mimic is lynda dot com. They have a good foundation. The site will need to have users login, and there will be different types of logins. Some for consumers, others for educators that are uploading there materials. If you have examples of elearning sites that would be a bonus. Site will need to be completed within 40 days. All design etc must be original and all development must be custom, no 3rd party integration allowed. Site must include SEO for thr first 3 months and id like to know what you will be doing in terms of seo, Thank you for your time and consideration