If you truly have too much negative camber (top of wheel is leaning inward), the symptom points to a damaged upper control arm.

Since this is unlikely, considering the type of impact, and the damage to the track rod, my guess is that you have too much positive camber (top of wheel is leaning outward). This would point to a bent lower control arm, which would be a consequence of a sever hit on the lower part of the tire. The adjustment eccentric bolt simply can't compensate for the bend in the arm.........therefore, you can't make the specification.

Additionally, IIRC, since the vehicle has a very high caster angle, the caster affects the camber to a certain degree. Most assuredly, the caster angle is screwed up, and, it's very possible that the camber can't be brought to the proper specification because of the bad caster.

Before buying parts, have a very good alignment shop check it out. You may be pleasantly suprised that the camber is adjustable within spec, after the caster is brougnt closer to the mark.