Ads Website

I am looking to build a new webiste that perform the following functionalities 1) Secured rgisteration and loging with ability to activate to through e-mail 2) Post Ads where ertain detailed need to be filled 3) Verify posted Ads by Admin and to be published only once approved 4) View posted Ads behind the login 5) Expiry date of the posted Ads that will be unpublished automatically once the expiry date reach 6) Integration with PayPal and SMS payment (using PHP programming scripts) 7) Ability to view & sort the publised Ads based on different views (i.e. country, region, category, price,...)