Spidey2112 will not be happy with me, since he counselled patience! I finally got around to gluing the crack in the head stock. However, I made a gouge in the opposite side of the head stock with the clamp, since I was careless and, apparently, impatient.
RBX 260 Rebuild
Diluted and applied some TiteBond II. I don't know how much, if any, wicked into the crack.