Attached the inboard attach bracket and fittings today. The T-401 plate I had first made didn't fit very well so I made another. Getting it to fit snuggly took hours of grinding fitting grinding fitting etc. Had a very difficult time getting all the rivet holes to line up as well. Also riveted the outboard T-401 plate in place. Its fit was much better and didn't require near as much fitting.
As a side note, I had to do about an hour of scraping to get rid of excess sealant left over from doing the outboard rib. I had tried to keep the area where the plate was to go clean but still required a lot of cleanup.