Website for cafe

My budget is fixed. 300$.
I need a simple web + admin panel done for a cafe. 1. Main page with details, contacts, address
2. Menu page
3. Shopping car
4. Checkout

For admin:
1. Add menu category / remove menu category
2. Add menu item / remove menu item
3. Order management page
4. Info management page / contacts management page

I don’t care what technology to use. I just need this to be done.

If flutter then flutter. If constructor - then constructor. Whatever.