I installed 18 or the 21 nut plates for the fuel tank attach brackets, and now only the inboard most bracket left to go, to drill this bracket however, I need to remove the bottom skin and the 4 inboard ribs, so I will attack that one tomorrow night. So far its gone pretty well, only one bracket is slightly off center so I hope that riveting this in place does not become a problem, guess I'll find out shortly, either that or Ill modify one of my pop riveters.