The wing struts and the cabane struts have been pre-rigged and left 'slack'.
They'll be finally tightened and secured once the upper wing is fitted.
As with the undercarriage bracing, the end fittings are 0.4 mm nickel-silver tube with 0.5 mm aluminium nuts, although it's difficult to make them out in the shots..
Now it's on to pre-rigging the wing and flight controls!!