I am having issues getting the pictures small enough to be uploaded and still visible, so I shall describe the crack as best I can:
On the inside edge (I bat right handed), from the original damage about 2 1/2 inches from the toe, the crack stretches from the end of the spine/dent up to slightly above the main swell of the middle, about 6 1/2 inches in total, but from about 1 1/2 inches from the dent it is very shallow, almost superficial.
On my outside edge, the crack stretches about 5 inches up the bat, and is slightly deeper from the initial impact to about 2 1/2 inches up the crack.
On both sides the cracks are not up grains. I know this isn't a lot to go on, but whilst I have some experience repairing/refurbishing my bats and my brother's bats, I have never tried to fix another crack like this.
The bat is still powerful, and sounds better than my nearly new GM, and has incredible ping whilst tapping up, which makes me optimistic about its potential longevity.
If I can find my dad's video camera, I will make a quick video showing all the angles, and how well it still pings and sounds, stick it on my youtube and post the link.
Thanks again all.