46canopy, I plan on fitting the extra tail light on the right door on my 49. I feel the more lights on the rear of the truck the better it would be seen. I believe a couple burb and panel guys on our site have done this. Don't know about down under or across the pond but my RH door is set up like yours with the cutouts and the access panel for the electrics. Don't believe it was a dealer option but someone smarter than me will jump in and tell us. Weeds