platform for selling products online

Hello, I hope you are well. I would like to develop a platform for selling products online. A platform that looks like the two following links. [login to view URL] [login to view URL] For the server side languages I want to use Python/Django but also integrate Firebase for authentication and push notifications. Below is the description for the desired features. If you are able to do this project, how long will it take you. Thanks in advance! List of features - Users can create accounts with their phone number or email. NB: in this case for phone numbers we can specify (WhatsApp number) and directly send a validation code via WhatsApp to confirm the user. - Integrate a module to send mass messages with WhatsApp to the users of the platform. - Also integrate a push notification system with a personalized sound alert to notify users of new offers, promotions, new products, etc. - Create a draw system, where a list of customers will be selected to receive prizes, gifts, etc. where each one will have their own login. - Create an alert system when the stock of a product reaches a certain limit that the system administrator will apply. - Create a system of daily, weekly, monthly and annual sales statistics. - Create different status of admin where there will be a super admin who will have access to all the platform especially the financial part and a manager status, where the role will be simply to manage orders, customers, stock, etc. but will not have access to data such as statistics, etc. - Have the possibility to add external sellers, for example sellers who will want to list their products in my platform. So in this case the platform will receive a commission of for example 10% on each order they will receive through the platform. They will obviously have their own admin space where they will manage their products, orders, etc. - In the payment page, create an alert message to encourage the customer to check their cart before validating and paying their orders. - Integrate a system to print invoices for orders. This invoice will be given to customers as a receipt for their order. - Integrate payment by mobile money -> [login to view URL] - Create a complaint system, where customers can send complaints about their orders only within 24 hours after their orders. - Create a system that allows the customer to indicate that their orders will be delivered the next day when they place their order at a certain time. - Create a functionality for the delivery charges. In the admin area we will create the delivery zones with their rates. When the customer places his order he will be able to choose from the list the zone where he is and add the delivery costs in the total of the order. - Have the platform in 3 languages: French / English / Spanish