Thanks Dave for your feedback and much appreciated. No there is no alloy rudder stock the rudder and stock are all wood and has metal bracket at the top and bottom which fit onto pintels at the transom. The rudder is secured by r-clips once placed on the the pintels. Your recommendation looks like a sound solution and I thank you for the illustration of the cleats. You have given me a neat solution which I am sure will do the job well. Many thanks for your time on both queries and really helpful.
Bob