Class3 ship&stuff costs around 3m. Class3 is fastest moving boat class on the
sea. Compared to ferry, you dont have to wait for it, you or your party
members dont have pay any fees to use it, you can store stuff into it and you
can use it to sail other places too than just between ferry lines.
It's a very good way to move and if you stay on tradelanes no pirate will ever
sink you.