PHP/MySQL website with content management

Hello PHP/MySQL website with content management I have need to have the content management system for all the 180 pages of website. ( [login to view URL] ). The request : to add the <h1> (in the old pages ) and the <h2> (in new pages ) to hide the external links. [ you see this example [login to view URL] )] To see if the layout of pages can be more large. ( the layout as [login to view URL] it can be ok ) To update the sitemap in automatic way. All the pages must finish with .php (or asp ) ( better in html ) [ no in this way : /[login to view URL];Itemid=5 ] To add the internal link in automatic way. Time 3 or 2 weeks : nothing late To be avaible in internet ( almost 7 hours to day ). More to guarantee some hours when the project is finished to correct errors or to change the structure ……. Payment with escrow.