The left side of the switch is the reverse of the right side, as it is in the image above. So, where the neck pup is connected to the outer most lug on the right side it could also be connected to the inner most lug on the left side for the same result (leave the other pup xonnections as drawn). If the neck pup will stretch that far then that's the easiest option.

Otherwise, as Wokks said, just add some extension wires to the pup's leads, solder and insulate the joins.