GSM makes a system called Calgo Steering. It's compact, strong, easy to install, and cheaper than a chain and cable set up. It's a pre-wound rotary style helm with opposed exiting 3/16" stainless cables. The kit includes jacketing that you install over the cables. The system is designed to use with a high strength tiller arm. The kit includes the helm, dash post, adapter, cables (pre installed), cable jacketing, adjusting bulkheads for the stringers, & a connection kit for the tiller arm. Sells for roughly $750.00.