Build a classified website with an application linking AFRICA, making it a village

i need a market place website joining all the countries in africa so its easy to look for property or any other services and goods available in each country by a click of a button, also able to meet financial institutions, buyers, sellers, service providers, and other opportunities available, interested parties need to provide a proposal on how to build the site and amalgamate the website and the login, advert placements, classifieds, paid up adds, and also how the website and app can be profitable, i also need to incorporate an african news feed and a directory of all companies in africa that joins our service. The project is about the mobile app and website. it will be awarded to the person or company that provide a clear project proposal of how the web and app will work. No chancers please.