Complete website desighn for a start up MLM Co-Op Team

I am looking to have a website designed that would include a home page for visiters to learn about our team. I will provide information on this. The website must have a capture page for visitors to our website. we also need a members login to a back office that will include a linear list building page that we can add new members to and assign a number to. We will need to be able to keep tract of our members and archive notices and news release related to our team. The team is a Co-Op type team that works together in another MLM company to help each other succeed. we will need a sign up page that can be used to enter our members into our Linear list.