You've built a very nice box there

is it possible to purchase the STL file ? or perhaps they are even available for download on Printables or Thingiverse?
I think shipping to Europe will end up being more expensive than 3 boxes.
I am not selling the stl - sorry. This was not downloaded from anywhere - we designed it in house. While this particular one may not be on any site, there may be something similar or something that can be modified to work.
but yea, shipping would probably be 30+ USD to ship.