Honestly, it's not as bad as you think. If you pull in to a campground and there are 100 people there, only 95 or 96 of them are going to stop what they are doing and watch you back up. It's not like EVERYONE is going to watch. You always have a couple drunk guys who have no clue what's going on, and then you have the children under 3 years old who don't seem to care.
I am relatively new to towing. All I can say is practice. Go to a big shopping center early on a Sunday morning bring some cones or 5 gallon buckets and practice. The scoop works well, I've got that down to a science. Good mirrors are also key. I purchased the fold out towing mirrors for my Dodge Ram on e-bay, that's a whole other story, but what a difference from the slip on ones I was using. I can honestly say I back just as easy on the passenger side as I do on the drivers side. I don't know if you can do it on your truck, but in the Dodge I flip up the center console up and slide over as far as I can toward the passenger side and still drive the truck. I basically sit in the middle seat, just doing that gives a you such a better angle on the view lookin out the back windows and in the mirror. I can also just put it in park and lean over and look out the window. Most important take a deep breath and take your time, get out 5 times if you have to who cares. Practice, practice practice. I'm no pro, I have it down pretty good but I still practice when I can.