We need a custom order for for the WHMCS system. (http://docs.whmcs.com/Standard_Ord
The design will be provided by us, so you must finish only the order form with some very basic css.
Generally it has to be a wizard with the following steps after domain selection or clicking the checkout button -
1. Ask to login or create a new account and then login
2. Create required contacts for domains.
3. Ask for additional services to add to cart (will provide a list)
4. Legal page - display terms for the selected domain, agree with them.
5. Payment - redirect to whmcs.
We will provide a detailed specification to the selected contractor.