automatic online website builder

I want to have a tool that can do the following: - browse templates (4 to start, ability to easy add templates later) - select template - edit template colors and images - add/ edit/ delete logo - add/ edit/ delete text/ images/ links on page - add/ edit/ delete/ order pages - add/ edit/ delete basic contact form - publish - register - logon (lost password etc) - make payment - ability to add functionalities later (like photobook/ shop functionalities) Users should be able to, after publishing: - edit the site ' from the frontend' (see the actual page and select edit) - find recieved mails from contact form (not sent directly) - check basic analytics - add functional modules and pay for it - use their own domain name Owner (me) must be able to logon and see: - amount of sites (date/ see and edit status) I prefer to work with a party who has done this before and can show me a working demo. If this is not possible, please explain why you are the right party for the job