That's some impressive damage. I've never seen that kind of damage from flight loads alone, that kind of damage looks to me like the wing was crushed at some point, like somethign falling on it in transport or something.

Is the damage localized to the ribs you have shown in the picture, or does it extend farther out on the wing? If it does extend most of the wing, I'd really say it is crush or crash damage, since the flight loads at the tips are actually very light.

While you are in there repairing, you should consider adding some shear webs on the inner 1/3rd of the bays. A shear web is a bit of balsa sheet with the grain running vertically that is glued between or against the spars, along the spar (ie 90 degrees off from the ribs). It prevents the spars from flexing towards each other or shearing past each other side to side. I can't see what's going on in front of the spars, but you need to get a look in there as well, and you really should consider cutting away the sheeting in the wing center setion and checking in there. The flight loads on the center section are much higher than even 6" away from the fuse.