Okay, problem solved today. As I promised, here is what was found: After chasing the "rabbit" all the way back from the outside plug-in where my shore cable plugged into the side of the camper and changing the female end of that, we then changed the 30A receptacle at the pole, then cleaned all the ends of all wires leading into the breaker box and breakers until there was nothing more to do other than check the power company's connection so I called them and thankfully, they quickly responded. Turns out their ground on the top of the spot pole was corroded which made the voltage in the trailer swing from 0 VAC to 75 VAC to 125 VAC to 175VAC. (Yikes!!) I could literally sit and watch the volt meter continually swing with nothing going on at all, then the voltage would stabilize at 125 VAC and as soon as we put any load on the circuit, the voltage would drop down to 0 VAC then when we took the load off, it would shoot up to 175 VAC and bounce as if it was trying to go higher.
End of story, after the power company removed the corrosive connection to their ground, everything is now working. AC blowing cool, fridge started calling, etc. Just hoping no permanent damage was done to my compressors, etc. Good lesson to learn. Thanks to all who kept telling me the problem was not in the camper, but somewhere back from there to the breaker box and pole.