Seann found the Fresnel lens I couldn't find in post #6 above. I thought I'd post a followup on how it worked out.
The lens just sticks to the back window of the pickup with static - no need to apply water like the directions say. I just kind of throw it up on the window when I'm ready to hitch up and then take it down once hitched (because it kind of bugs me when driving
Without this lens I can't see the hitch while sitting in the drivers seat - it's below the sight line either for the mirror or by turning my neck (which won't go that far anymore anyway). With the lens I can clearly see the hitch in the mirror and watch the pin approach without having to get out of the truck every few feet to check alignment or have an assistant.
It's a cheaper and simpler solution than the camera I first tried.
Buddy Ray - Atlanta
Jayco Eagle HT 26.5RLS
Ford F150 Lariat, 3.5L V6 Ecoboost
Max Tow Pkg, 36gal tank
Reese Sidewinder and Reese Titan 16k hitch