Back up camera on Ford 5'er tailgate

It took trouble but I relocated mine to the center of the brake light at the top of the cab. Now I have a clear view of the 5th wheel hitch when hooking up.

http://www.coastaletech.com/synclockpick.htm

I've thought of doing the same thing. I did a websearch and found OEM factory replacements priced from $200-$500 depending on who's selling.
http://www.backup-camera.com/products/ford-f150-f250-f350-tailgate-emblem-camera
I've got a couple of junk yards who are suppose to call me if they get a wreck in and I can salvage the tailgate emblem/camera.
I haven't been able to find just the camera and pigtail which is what I'd rather have. I could fabricate my own mounting plate under the bumper.