Hi Nigel, because your project is so important, I hope you do not mind, but I have given you a seperate board, so as to keep history going and inform others of the boats design, build and methods of repair. I look forward to your progress. All the best.
By the way, your trailer is an original trailer, I can identify it by the winch post, over engineered basically and the tie downs behind the wheels. I have built new trailers for both of my boats as I need safety on the roads and I take my boats abroad, so should you need a trailer, we have the design and could build for a lot less than most, plus galvanise and they tow like a dream.
Your engine has a tap on the redundant thermo housing, when you find out what that is for, please let me know. Also your plumbing is quite different to the MK1's I have.
I see another difference, your rear engine support is covered to stop fingers in the flywheel and you have a double set of engine rubber mounts, interesting.
I wish I had the steering wheel centre, mine are both missing.
The internals of the jet, could be updated, but as mine is so original, I have kept it as is. The alloy sacrificial anode on the inner shaft is alloy and coated, that cost hurt me to have it made and coated as a one off.
Finally, I have had made by hand the bow eye in stainless, so if you would like one as they are originally plated brass, let me know. I would need a pattern from yours as they are all hand made, but we produce them a lot less than having them re plated. I am making one right now for my second boat.