What is the estimated value of tomes in terms of large ingredients? I've got 8 or so in the bank that I'm probably not interested in trading but some are duplicates so I might consider it.

I've got pretty much a full set of +1s (minus dex, I think) and a couple +2s (Wis and Str). I also have multiple +1 cha and int tomes.

Are the +1's worth larges? scales?

How many are the +2's worth?