Formed the two rudder lower ribs. Had to make clamp plates for the brake (couldn't find those I made previously) - I make these from scraps anyway - to bend inside the triangular shapes. Trimmed the larger rib to fit on the drive plate. Drilled to 3/32, then to final size and deburred. Also drilled plate attach holes (for the 2 cables and the tailwheel steering rod) to 3/16. It's ready to rivet, but still no fasteners. The fact that the flanges are not the same height all around is intentional. The rudder skin is cut higher around where the drive plate protrudes, and the rivets are displaced accordingly.
