Refinement of the functionality of the cafe based on WordPress (payment, delivery etc.)

Hello there, we are a small web development agency and some times require support from the side 🙂 Today we have a customer from Germany. He wants to move away from liferando to his personal website. He bought a premium theme and will do the design himself. Now it is important for him to set up the functionality of the website on WordPress.

There is a premium theme template “lafka”: https://lafka.althemist.com/ the customer has and competitor example based on this theme: https://sushile.de.

Functionality needs to be improved:
1. Connecting online payments PayPal, Klarna, Stripe and others.
2. When ordering, the client can create a personal account in which his personal data is stored, and there is also a history of previous orders.
3. If the client orders as a guest, the option to check the box so that his data is saved for the next delivery.
4. Make a setting so that delivery is possible only within a certain radius from the cafe.
5. Set the minimum free shipping amount. If an order falls short of free shipping, the missing amount must be added as “shipping cost” to the invoice.
6. A simple notification system when order comes (not dependent how far away the client or on traffic), but distinguishes between the days of the week and the hourly delivery interval. For example, the standard delivery time is 45 minutes, during peak hours the delivery time will be 1 hour.
7. Every order placed through the website must go to the “Simplydelivery” checkout system. This feature has already been pre-programmed for the old site (which is still available online). Perhaps this code can still be used / modified for a new site. Solution provider: www.get-sides.de (there is an English version of the site). We can also consider other suitable analogues.
8. Work with mailing lists. An email is sent every two weeks with promotions to customers.

I will be glad to consider all your offers ?

Br Valerii