Restaurant Billing & Inventory Management Website

I’m looking for a freelancer to develop a restaurant billing website. The project includes features like billing, inventory management, and an easy-to-use interface for restaurant owners. I will attach a sample UI for reference.

Could you let me know:

1. How much you would charge for this project?
2. How long it would take to complete?

Sample ui : https://www.figma.com/design/gaCNsawKk4ruexpIZ1cskS/Restaurant-Billing-Website?node-id=0-1&t=Q72JeHPAweTJPHDi-1