CMS Website for an Online Retail Store

I require a website to be built for a unique online retail shopping experience. The website will sell a variety of well-known brands over a limited sales period of 2-5 days. This is due to the lack of warehouse facilities and sourcing directly from suppliers. These brands will be heavily discounted to attract consumers. Each sale of a brand over a certain period shall be called an “event”. Shoppers can only buy from each ONE event and check out from a certain event before adding items from another event. This is to prevent confusion or mix up with suppliers. Shipping will be a set price no matter the cart amount or location within Hong Kong. The website is for private members only, thus, it will require a sign up process and members require login and password. Members can invite others to sign up and receive a voucher in return. Payment methods are visa, master, JCB and American express cards and paypal. Currency in Hong Kong dollars. Links to facebook and weibo accounts. Simple navigation across categories is required. Both traditional Chinese and English version required. An accounts page is necessary for all members to adjust settings such as passwords, email updates, contact details, manage orders, and view/use vouchers. A Q&A page includes explanation of shipping charges and period, payment methods, privacy policy, return and refund policy, how to place an order. About page for company’s short introduction Still yet to acquire domain and host and email host, will confirm this matter when job is active. I require a CMS for easy management of updates myself. I require all members to receive an email update daily in the morning about that certain day’s ‘event(s)’ Contact us page