I willl try to use an IF "zone == zone_of_the_user" in the template to bypass this statement via "template override".
This can work, I think.
I will get the variables via "var_dump" and, then, apply the "IF statements".
Suburb prices zones or Neighborhood prices are a convenient need in this actual days. I wish some like this in the next versions.
Think about. Many business works in big cities with many distances and custom manual shipping (pizza and flowers, for example).
Restrict by zones is vital for this business, not only ZIP Code.
I will try to build a custom plugin, too.
Thank You for fast response. I will inform my solution in the next post.