A little glass, a little epoxy resin. It can be glued back together after you sand the fuzz off the fracture with CA. Then sand the inside well with 220 grit, clean, and apply a few layers of 3oz fiberglass with epoxy laminating resin. Make each layer just a little wider then the previous. You double then sand the outside smooth, apply a single layer of 1.4oz cloth over the break, feather sand the edges and reprint. Done right it shouldn't add more then an once of weight. If you choose to do the repair you can PM me your address and I would be happy to send you the required cloth. The repair can be documented here, I will talk you through it and then others will have access to the information.

Dave, sand the edges of the break a little first. The tears will not completely mesh back together unless you remove a tiny bit. Once you glue back together with CA tape the outside for some added strength then sand the inside. The glass weave should run 45 degrees to the break, alternating directions with each layer. 4 layers for a balanced layup. Once cured you can sand the outside smooth and apply a layer of lighter cloth as any orientation and feather sand prior to repaint. The exterior cloth will prevent the crack reappearing in the finish.

I would start with bolting on the wing, then you could tape some CF rods to the outside for alignment while spot gluing with CA.

Not a bad thought. I however would think that the additional weight of reworking the wing saddle would be a wash with the amount of lead he needs to add to the nose.