Build E-commerce website on Shopify

We need someone to set up Shopify website properly, Like creating the Category and Sub-Category, Payment Gateway Integration, Adding our brand logo, connect domain, Contact us Page, Chat box integration, Adding Privacy policy, Return & Refund Policy, Terms & Conditions, Shipping Policy, Cancellation Policy, Adding the creating the attractive website, for our kitchen appliances, for customer portal, where customer can login with google+, facebook, apple. Customer can view there order details, create return within the return window time frame.