So to get an Idea how all the maps Layout let me set up some maps for you.
The trade route I tend to stick to is the Rimma Trade Route.
On that route is the Tapani sector
Followed by the big map, mostly the Outer Rim, this representation of the maps is rotated 90% clockwise from the maps them selves to show how they would fit into the Rimma Trade Route map above.
Laid out like this with map K-359 being the Elrood sector