The electrical umbilical on the outside of your trailer goes through the wall via the barger receptacle. On the interior side of the receptacle is a yellow heavy duty romex cord that runs into the back of the magavolt power dis center. You can see it by removing the vanity sink and magnavolt.
Mine is mounted with screws and a bunch of vulkem or sikaflex to the wall.
I would guess if the screws were removed the vulkem would still hold it in place and would need to be cut off the back of the receptacle. I dont know how far you would like to relocate it but it only has enough slack to relocate a few inches forward unless you replace the romex with a longer piece.
FYI the vent stack for the trailer runs through the closet and is put in after the closet is in place and then glued. I had to disasemble the shelves to get the closet/wardrobe out. If you can get to the romex without removing the closet do it I do not recommend trying to remove the closet unless you absolutly have to its a #@!!! I had to to get the ceiling headliner and aluminum out.
Looking back if I had to do it again I would use a cable pipe cutter and cut the vent pipe below the interior shelves and pull the pipe up through the roof this would make the wardrobe easier to remove.