Clean up your engine compartment by moving the wiper motor inside, under the dash. Weld up the hole for a smooth look, then reverse mount (hide) the wiper washer motor behind firewall. Would it need to be mounted in the same direction for the auto-park (cancel) to work?

Linkage

The motor simply turns in a circle, with the parking mechanism stopping it at a certain point. Can you mount the motor inside, turned around, and rotated 180 degrees so the park is in the same place?

For more detail photos, see Wiper Motor Repair

Stock (LHD) linkage

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiper/20100207101244DSC08418.jpg