Replacement Rudder/tiller needed...

I ahve a Designers Choice Sailboat manufact. by Howmar boats (no longer in business). I capsized and the pin broke and the rudder/tiller sank and I couldn't save it. I need a replacement. Any suggestions where I could have a new one made? I have 3 pictures and all of the specs. of the old rudder/tiller?
Rebecca (xscreeennamex-at-aol.com)
Rebecca (xscreeennamex-at-aol.com)