Journal question...

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I have an idea. I want to make several hand made journals with the same theme. The thing is, I have a hand draw idea for the pages. I would need to reproduce about 100 pages for each journal (making the journal have 198 pages). It seems to be costly doing it the old fashioned way of just getting hundreds of copies in b&w doubled sided. Are there any alternatives I haven't thought of or discovered?

Also, is there a link to different kinds of paper? Like, I'm thinking I might want to use something thinner than computer paper but not super thin like the Bibles have... how do I find out what is right for what I have in mind?