Moving a receptacle in an unfinished room with exposed everything

I've cleaned up my basement mechanical room and will make that my new office. There is a junction box on the ceiling. The source runs into it, and out of it runs one line to the pull-chain-operated light fixture, and another line to a 2-outlet receptacle mounted on a stud between the furnace and water heater. Aside from whatever's run to the appliances that is all the electric I've got in there. Also, everything is exposed: no drywall. (You see the appeal.)

Problem is, I need that...

Moving a receptacle in an unfinished room with exposed everything