Consulted tech counselor on rudder horn weldment-to-rib and spar riveting--no problem. Completed riveting, but did have a learning curve on riveting 1/8th-inch solid rivets--developed some rivet drilling skills, but will invest in a rivet removal drilling tool..
Upper VStab hinge nutplates are not yet riveted--minor alignment problem.
Rudder and VStab skeltons completed
Upper VStab hinge--nutplates still need riveting
Upper rudder hinge--major riveting pain with solid riveting squeezing skill development