For our steering rod we bent a piece of rebar. Same results, much cheaper. If that option isn't good then take the extension for a vaccum cleaner hose - you know that plastic thing the lady uses that makes alot of noise when your trying to watch t.v..
They are the same diamater as the handle on the kicker and act as an extension. I'f you desire you could even hook two together. This prevents you from having to reach back. Two change gears take a broom stick and put a metal ring on it, then when your fishing alone your not reaching to far back and fighting the fish at the same time.