How about buying a new copy of the manual?? It was, after all, your decision to mutilate the holy relic you had in the first place!
As I've read through the manual I've "mutilated", it's still very readable. Although, for only $20 shipped, an extra manual is tempting.
BTW, for those who have the manual, can you tell if you can cut the spine deep enough for spiral binding WITHOUT having the same result I've had?