The centerboard king pin was installed.
I have chosen for a permanent waterproof yet not serviceable installation. With this option I will be certain the king pin will 1)always be there and 2) it’s mounting will never be the cause of water getting into the hull.
Screwing in two PE retaining plates was a bit of a challenge with the only 20 cm holes giving acces to the inners. A mini cordless hand drill screw driver came in really handy.
The lathe piece was made by a friend, some parts just need to be created I guess.
Building a wooden Minisail 