3mm and 5mm drill bits
sandpaper (80 to 320 grit)
wood dowels 5mm
welding wire 3mm
blue masking tape 6mm from 3M
standard painters masking tape
spray paint (red and clear)
primer for plastic
Step 1: Taking apart and sanding
Step 2: Replacement Parts 1 - Steering wheel
From a wood dowel with the right size I made a bending template. I basically drilled a 3mm hole trough the middle of the dowel and made a centered cut into the top side.
I got the bending right in the second attempt. After cutting off the excess wire, I soldered the gap to avoid injuries. To finish I hammered and filed the lower end of the steering column flat to fit it into the existing steering joint.
Step 3: Replacement Parts 2 - Lights
On the tractor side I redrilled the existing holes to 5mm diameter