Classified Ads site needed. Both frontend and backend.

Hey guys! I'm looking for someone who's able to write the code for a site where people should be able to scroll through ads and also post their own ads. The best example I'm able to give you is: [login to view URL] which is the leading ads site in Sweden. This site though, is supposed to run in Turkey, so the idea is the same as on [login to view URL] but with turkish cities (I'll give you a list of which cities, they're divided into 8 regions). Anyway, the ads could be all from cars to pets, so the backend of this site should be able to create new categories and also edit/delete ads. It would be great if you could make each ad an unique ID which can easily be searched and found in the backend of the site. The design is not needed, only the coding. Since this site is made to generate some money, the login-script/backend/ad-posting must be secure. If you have any questions about how the site should work just look at [login to view URL] since it's the same idea. And if you have questions regarding this project just email me and I shall answer as soon as I can. We'd like to start this project within 3 days, so happy bidding and have a nice day!