Cut a coat hanger to make an attachment to the forward doubler to be able to insert the doubler into the HS and clecoed it to the HS rear spar. Found some scrap .040 and used it to simulate the nested spar double and be able to match drill the new bracket to the old. Also had to sand down the edges of the new bracket to be able to “nest” into the nested spar doubler. Primed and painted the right brackets. While waiting for the paint to dry I drilled out the left brackets and associated rivets on the skin in the rear spar. I then match drilled the right nested spar doubler, rear doubler and elevator brackets to the rear spar.