If you want a 3rd A/C it would not be a difficult task for a seasoned electrician to fish a wire from the non-moving cabinet wall to the ceiling vent for a 3rd A/C and have it tail out at the 50amp plug location on the back of the camper. then you could just use a 20 or 30 amp receptacle with a matching cap and cord over to the power pole along with e 50 amp cord. This would keep the moon and stars in balance and you wouldn`t have to juggle around appliance use. " Wait honey you can`t dry your hair just yet the 3rd a/c is on...
You said what?
OK OK I`ll turn it off