I am looking for a web design genius for online shop creation

Here's a rough example of what I need .. namely, it should be a delivery service page. but it should be kept very simple without a lot of bells and whistles. There should be a customer mask and an admin mask. With the admin mask you should be able to add new dishes and change prices yourself with a mouse click. Then there should be a kind of window where you can see orders, which are indicated by a ringtone and the admin has the opportunity with several buttons to select an action. Such as. 15min, 30min, 45min, 55min so that the customer then receives the notification that his food in about 55 minutes is with him (this is just one example). The ringtone should not stop until man has selected a button. The admin should still have the possibility to have his online shop displayed as open or closed so that he can decide whether to take orders or not. On the order entry page, the admin should have the option to print the order as a PDF or to have it displayed directly so that you can write it by hand on paper. The customers should more payment options such. Cash, Paypal, debit card and can choose whether it should be delivered or picked up and when it should be delivered and when it will be picked up. Further details we can discuss, but I would have to know how much I have to invest ca?