Har yes the curb feeler idea did cross my mind, but I wondered if I could hear them as I pulled forward. Still thinking about the mirror idea, I wondered how hard it would bee to see as I got further away from it, may give it a shot though. I have one of those old wardrobe mirrors laying around.
I have to say though, I had not considered the Autopia inspired suggestion Grumpy made, I have some landscaping timbers here already, so that one may also get tried this weekend!
I am also considering putting some cheap backup cameras up high and switching them to the head unit when I need them.
2012 Jayco Greyhawk 31FK