Need website with custom CMS

Need a design and CMS in php/ajax/mysql This is for car website selling approx 8 models. The website and CMS needs to be compatible with all browsers especially IE and mozilla - Design The design sections will have the same sections like this website [login to view URL] – will leave or add a section or two but overall sections would be these. Design needs to be done in fully CSS or much as possible and use external files for faster load up times e.g javascript This project needs to be completed and tested at the 28th Nov Max budget is $400