I want to create a marketplace in website

I want to create a marketplace where people that want to sell their products. The pay per month a subscription, we give them a limited quantity of posts. She can sell by her side of use our store for safety. The other thing can be for free but the client needs to leave the package in the store until someone buys. We have a QR code to scan the products we receive and the system automatically posts the post and have an icon that says “in Store” “En tienda” (Spanish). The payments need to be directly to our bank, the back provides the code. Every client has one QR code. We they leave the package we scan de code and the system automatically says “In store”. That’s not an obligation but it works. The client that pays subscription can chat online or by WhatsApp. We can offer the same system as the free client where they leave the product in the store. The free client can’t offer by WhatsApp because we do that service when he leaves de product. We have the designs in Adobe but we need backend and frontend We need a marketplace with the next points: 1. Categories, the users car find articles in categories and subcategories 2. One section with “deals of the day” 3. Section for customer service, online chat or only a button to WhatsApp. And when we are closed the cliente can send us a tickets to our email and we can reply. 4. Section for the “best sellers” 5. Registration: 2 sections one for buyers and one for sellers 6. The seller needs a dashboard where he can see their items, inventory, sells, invoice and the control. We want to create a subscription seller and a free seller 7. The users can have a profile with picture, address and the main details 8. The users (buyer) can see in the profile their purchases, suggestion of products, returns, complains and other details 9. One cart �, the buyer can add items and we do the rest (delivery and pick up in our store) 10. The payments can be by cash, bank transfer, cards in the website(we need to work with the back and it’s a process), cards in the store. When we have bank transactions we need to check it within the first 24 hours And it’s esencial we use QR codes for validations, instead of barcodes, for more safety. We have an scanner and I give this idea to you to impress me with something