Website improvement (Seo-friendly pages, facebook login,...)

We would like to make the following changes on our website developed with PHP. - Make the URLs seo-friendly and add meta-tags. Currently, the URLs are showing like this - [login to view URL] We need it to be rewritten to [login to view URL] - Add “login in facebook” to the login options; - Currently, we have a payment page that appears when the seller finishes adding their puppy. We want to be able to hide that page from the admin to make it free and to put up that page anytime we want the customer to pay for their ads. [login to view URL] - Allows users to search and browse through a range of dogs and puppies for sale in United States. Please give us your price and the duration to complete this project.