B2B website, codeignitor

Core Requirements 1. AJAX based buying and selling news feed 2. Gold and silver membership portal. 3. Chat service between members. 4. Website should be available in multiple languages. 5. Date base will have to be imported from my old website. 6. Search tab with, countries and categories drop down option. 7. Custom scripts. 8. Home page must have countries and categories. 9. Separate sign up for Gold and Silver members. 10. Other requirements. i am looking for someone with good html css ajax and javascript skills , codeignitor or cakePHP should be used. please let me know how long would you take this to complete i need this project completed within a month. In your cover letter please first answer the following question. what is the capital city of Africa?