Here is an example of using a second tailwheel pushrod (carbon fiber). There is a nosewheel steering arm just above the notch in the ordinary Dubro tailwheel bracket for the external arm.
This Hellcat Beater I use for genuine arrested landings and as a paint ball target. The tailwheel was neccesary to beef up considerably for this as it was often caught in the arrester Line.
http://www.youtube.com/watch?v=M2WIVHZaSHA
John