Customization of CS Cart Multi Vendor 4.0

We require customization of CS Cart Multi Vendor 4.0 edition on an urgent basis. The HTML designs are ready. Only respond to this job if you have experience using CS Cart Multi Vendor edition. Job required to be completed in 12-15 days. Please provide examples of previous CS Cart Multi Edition work you have done. Payment will be based on achievement of milestones. This website will operate as a hyper-local marketplace platform for for food and consumer products. Customers can find businesses, products and services in their neighborhood. They can shop by: (1) Product / Service Category (2) Seller / Service-provider (3) Brand / Product We require the CS Cart Multi Vendor edition (front-end as well as back-end) to be customized to include the following: 1. The welcome page of the site would require the user to enter the Zip Code/ Area name based on which the sellers / service providers who service that zip code/ area will be shown on the home page. 2. Each seller will have an individual storefront along with a drop-down menu and a search bar to search within that store. 3. The Product details page will show the other sellers selling the product apart from the top-rated / best price seller servicing the area chosen by the user. [login to view URL] the cart page the information will be organised "seller-wise" with sub total shown for each seller. Also the user can choose the delivery slot from the time bands options provided. The delivery slot would be common for all sellers. 5. The Checkout page would be a 4 Step checkout with options to pay by Cash on Delivery, Gift Cards as well as by redeeming the Loyalty/ Reward Points 6. A separate functionality needs to be built in for advertisers whose advertisements will be shown to targeted users when they search for competing products or add a substitute to the cart. We will be monetising these advertisements. More details can be shared on getting responses from the deserving professionals.