My choice will be the brass knobs with bolts running thru , and mounted on length of wood.
First the holes were drilled.
Looking at the pic abowe right , its aparent it will not offer much torque strength.
The brass washer cut to the size and drilled was glued to the nut , and sides were bent to
prevent sliping.
That fits the cavity of the hull well.
Two 4 cm lengths of steel tube to form the spacer for my "work stand".
The temporary stand to be replaced by proper stand once all the painting has been completed
