Sales website with ViaBill/Klarna payment gateway. (Digital and physical products)

The website shouldn’t be available to the public. (this means its not possible to create an account, nor is it possible to enter the website without a link) There will be three admins each with their own account. These accounts contain the same features. The admin should be able to list sales. The sales will be both digital and physical. this means the digital products will be transferred to the customer right away when the customer has purchased the product (images sent to their email with a confirmation) The Admins will have the option to enter a “Transaction history” section, where they can see each and every successful sale they have made, and they will have the option to either Bulk export or single export the sales into a .PDF file. The admin will also have a sale section, where they can see their active listing. they will have the option to list a new product. Once they “add a new listing” they will have the option to select if it's a Digital or Physical product. The admin will have the option to insert an image of the product, a price tag and a small description. If it's a digital product the product will be sent directly to the customer's email. if it's a physical product, the admin will have to arrange the shipping themselves. Once an item is listed successfully, The admin will be able to see the item in “Sale section” where they can see a “Link” a “Delete” and lastly an “Edit” section. Once the Admin presses the Link they copy the link to that product, which they can send to a customer. If the Admin presses the “delete” they are asked if they are sure about the deletion. Edit simply enters back into the “Sale Template” The customers will only be able to purchase the products using Klarna/Viabill or a similar payment gateway. Once the customer confirms the purchase, they have to enter their email in case its a digital product. so the product can be sent to the email automatically. The customer will also get a confirmation email, with a receipt. The customer won't be able to enter anything else on the website other than the Product link they have received. No need for a lot of design, needs to be as clean and functional as possible.