Move existing asp.net into joomla extending the website with new fluid design with mobile version, shopping cart for courses and services with file upload options - repost

Move existing asp.net into joomla extending the website with new fluid design with mobile version, shopping cart for courses and services with file upload options [login to view URL] to be moved into joomla 3 with necessary modules, plugins and components to meet our specs Site extended to have a landing page with 3 options directing user to three distinct areas (all three based in the same template to be designed but with different graphic) Shopping cart for courses Shopping cart with file upload Payment by paypal Custom forms designer allowing future flexibility in adding forms, see our existing google drive forms on [login to view URL] (recruitment, telephone interpreting) Test module with certificate generation (must offer adding certificate template, yes/no answers, multiple choice, translate a word, dictation based on soumd file) Online brochures (for school, for telephone interpreting, for translation) Appropriate graphics to suit online learning, school, translation and interpretig including diagrams showing steps (i.e how telephone interpreting works, how you learn online, how to...) +open to any suggestions to improve, streamline and perfect