I have a 96 car, there is a combined headlight/ indicator and wing support bracket at the front, which also houses the cable for the repeater indicator. It is held on the chassis by two bolts closing a clamp, and is removable, which is important because you have to glue the wing to the bracket. The two main bolts are in the middle and towards the end of the wing, then there are the smaller bolts which screw into the chassis tube.
Redline can source the wings, but you may have to wait as they get them made to order. You will also require some sort of beading to close the joint.
PS you glue the wing in situ, once you are happy with the fit.