I finished riveting the rudder skin to the frame. This went fairly smoothly compared to the the horiz stab. I ordered a the TAF recommended strobe / position light from Aircraft Spruce: http://www.aircraftspruce.com/catalog/elpages/posistrobexp16led.php?clickkey=4928320&PANEL=357
Ready to fit the fiberglass rudder tip on the top, and I'll rivet the assembly after I fit the strobe.