Classified Ads website

I need a classified ads website. The website will have the below specs. Allows sellers to post ads for free or featured premium ads. Featured premium ads payment system (paypap and credit card). Featured items are on a carousel ad on homepage or on every category. Category must be supplied - this will be easy if you have an experience in classified/directory website development. Ads are due for approval. Designs should be part of the package. SMS system and emailing system on where buyers can contact sellers. Easy registration page, facebook integration if doable. Simple but funky design is a must. Please present ideas and templates before bidding. Experience on developing classified website is a must. I'll give a 3 week turn around time, including designing and amendments if needed. Website has to be SEO ready. I need an easy to use admin page managing advertisements. I need this to be unique best ideas and proposals will get the job. You can refer to established classified ads website like gumtree to get an idea. More information once we agree on terms of development. Will be good to through the sdlc process,