The rudder blade and the four parts of the rudder stock have been cut to shape.
The rudder stock packers/spacers:
The blade and rudder stock cheeks/sides:
Rudder stock "dry fit":
There remains a good bit of work: sanding, fitting, filling & redrilling the pivot holes, aligning and fitting the rudder stock, giving the blade a foil shape, adding a sink-weight, painting, varnishing and assembling.