Gaderian nail it.
In short, It easier to build a new one rail system that work for you , because the rail system fail to often.
This is way to move i snot elegate but it work You will need to change all the X & Y to the one you want.
if ! ( #charposx = 5709 && #charposy = 1956 ) ; drop west
{
goto step_11
}
if ! ( #charposx = 5709 && #charposy = 1950 ) ; drop North
{
goto step_11
I use the 4 hole entrance to do mine quest. Britain is the only that drop you is all 4 corner , and the west one is the worst to move out
To map your route you can use BMPathfind sub. it easier to add and get get great distance from it.
gosub BMPathFind 1087 1940