Competent magento 2 developer with good communication skills

I am trying to set up a tiling shop and have the product page and ordering process similar to:
https://www.fliesenmax.de/bodenfliese-marazzi-treverkmust-beige-25x150cm.html
or
https://www.fliesen24.com/bodenfliesen/moderne-bodenfliesen/glamstone-warm-ret.-75x75-cm

What's important:
- Price entry in the backend should be in m²
- We should display the price of m² and the price of a box with its contents.
- The visitor will enter the surface he needs, it will be rounded up to the next number of boxes that cover that area.
- Or he will enter the number of boxes and see how much that is in terms of area.
- Both fields are interconnected.
- Show the total cost of his order.

I will give you more details via chat if needed.
I am really looking for someone with good english who can understand the whole picture and do what's needed to deliver a functional end result.

I am not looking to micro manage and go through every trivial detail.

Start your application with "magento wizard" so I know you actually read this. I am not looking to waste your or my time.

Happy bidding. There is going to be more work for the right candidate.