project management website with products

Hello, -Needed project management website with products display and payment facility, script. -A great and easy to navigate and international standard web design with logo. -facility to assign project to partner service provider as user within website keeping customer/providers info confidential & facility to communicate onsite. -customer/providers account view should be limited and under full control of admin. - complete seo - after service support like but not limited to whenever needed more features integration & something extra for satisfaction. - pls requesting to include link of ur already created such project and advice which one u will use like open bravo. etc. only proven experienced guy with demonstration would be awarded project.