4 Responsive Web Sites

It would involve creating 5 different websites with responsive design. They are all similar, classified advertising sites. 1 Jobs, 1 Real Estate, 1 General Classifieds, 1 Deals/Coupon Site, 1 Price Comparison Site Each would contain: An admin system: - Users can create new accounts - Users can add a profile - Users can upload a listing (job, property, advert, etc) - Users can make paypal payment to make their listing come up first - Users can sign up to get email alerts - Users can see views of their ads Super User Admin: - Allows admin to edit users and ads - Allows admin to upgrade ads for free - Ability to block or remove users/ads - Able to edit templates for the site Email Alert System: - Tells users when paid ads are expiring and prompts to re-buy - Send alert emails to users that match their searches A front end website to display the ads - Logo and site design - Responsive Web Design (Main pages are homepage, search results, ad display, user profile page with their listings) - Preferably PHP and/or perl - Registered users can vote + or - for ads and profiles - Registered users who have public profiles can earn reward badges - MySql database - SEO urls - SEO cross linking in the site - Visitors can reply to ads We envisage that for the most part, this is creating 1 website then slightly modifying it to suit the needs of the other sites.