I spent more time looking for the last L08 platenut than I did working on the channel and plate. I fitted everything together to line up the holes in the flap actuator plate. Drilled and deburred the holes. I could only find one of the goofy platenuts with both attachment holes on one side. I had used a few on the baggage floor and have a zillion of the other platenuts... but one one of the offset ones. (I was hoping it wasn't sealed under the baggage floor:-)
I finally gave up the search and was just getting ready to call it a night when I found it on the floor. So, I ended up squeezing the rivets on it and the attachement plate.