Ahh, OK, that makes sense.

Would you mind recalculating for the entire route? Southern Finland to southern England, as in from your place to mine?
There are (typically, I know there are ways around it) two ferry crossings - we can assume a row boat for those.

We can also assume a 10-20% packet loss in the donkey transport, due to some of the cargo getting lost or damaged by the elements, especially over long distances, so we need to factor in some redundancy.