Battery shorting killed all power

I have a 1975 slant six Dart I was doing work on. I attached the negative terminal and while I was tightening the positive terminal my wrench hit the metal battery bracket, shorting out. Now my car has no power anywhere. Everything in the engine bay is okay; battery, starter relay, fusible links, fuses, and bulkhead. I have continuity from the battery to the bulkhead. Something is shorted somewhere and I am lost with the factory electrical drawings. Please help.