If you ending buying that Ray SPX 5R auto pilot make sure it can handle the weight of your boat. I think they rate that unit up to 4400 pounds for mechanical steering. Don't get the cheaper costing unit for hydraulic steering for a mechanical steered boat because although it can be fitted to work it will wear out in about a year. Also make sure that all parts needed for installation come with the kit. After a lot of research I ended up going with the Sitex SP-110. So far I'm very happy with it.