Can anyone help me locate a keel-mount rudder kit? I'm building my 5th stitch-and-glue kayak and want to install a keel-mount rudder like those on K-1 boats. Ideally, a retractable keel mount rudder is what I need, for the shallow Florida coastal areas.

The kayak design is intended for open water racing. Below the waterline the hull is similar to a surf ski, and above the waterline the kayak has sufficient volume to handle rough water. Dimensions are 18' X 18".

Any ideas for rudder suppliers or construction techniques?