Nice work!

Quote Originally Posted by Lukc View Post
unfortunately I got the orientation of the whole map wrong by 90 degrees
In Sketchup 8 Pro you can set the North direction using the "Set North Tool" from the "Solar North" toolbar (select it in View->Toolbars if you don't see it).

Another way is to select everything and simply rotate it 90 degrees. Should be about 6 seconds work for someone as rusty as you