Simple Social Network with Ad listing platform - PHP

Hi, I need a social network site like a Facebook, but with only very limited features. This is basically for manufacturers and buyers community. I do not need Wordpress websites. This must be developed using PHP. Main Features required: • There are three types of users: viewer, Manufacturer and buyer • There are four main interfaces for users : My Factory (manufacturer Profile), My Shop(Buyer profile), Ad board & timeline • Site will have a blog page to post articles by the admin only. • There are 2 admins: Super Admin & Moderator -Viewers can only see the ad board. -Buyers and manufacturers can post free and paid ads to ad boards. - option for featured ads and bump up ads for paid ads -They can add posts to timeline -Posts can be liked and shared by users (also share to face book option must be available) -Admin must be able to create ad packages (free and paid) -Admin dash board must show site statistics/analytics -Sponsor ad management ( Click per ads and impressions per ad- only for sponsor ads) Please let me know your approx cost details to send the full documentation. Thank you.