Strangely enough, I'm pretty sure the damage can be cold-set back into what it was intended to be - the question is whether it's worth it:

A. Needs fork straightened. Tools required: Park FFS-1 (or FFS-2) + FT-4
B. Twist headtube back in alignment with seattube. Tools required: One frame table and a fat guy to push the leverage bar.
C. Put headtube back in alignment with the rest of the frame. Tools required: Park HTS-1

The remainder of any rear triangle alignment can be done with the FFS-1 or Park's chainstay straightener (forgot the tool number).

-Kurt