Let me see if I have this right -
Essentially you want to be able to use the found spellbook as an infinite scroll.
That is you want to be able to continuously make scrolls from the spells contained within without erasing them from the text.
This pretty much flies in the face of the 3.5 rules.
In 2nd ed you could cast a spell from a spellbook but the spell vanished just as if casting it from a scroll.
You might want to think about what the DM has planned for this item.
If he is not shy about dropping in scrolls when they are needed, surely he thought about why this spellbook is important - especially since none of the PCs can use it.
Perhaps it is important for a trade with an significant NPC (either you have met or will be meeting).
Essentially you want to be able to use the found spellbook as an infinite scroll.
That is you want to be able to continuously make scrolls from the spells contained within without erasing them from the text.
This pretty much flies in the face of the 3.5 rules.
In 2nd ed you could cast a spell from a spellbook but the spell vanished just as if casting it from a scroll.
You might want to think about what the DM has planned for this item.
If he is not shy about dropping in scrolls when they are needed, surely he thought about why this spellbook is important - especially since none of the PCs can use it.
Perhaps it is important for a trade with an significant NPC (either you have met or will be meeting).