Gather Morel and Cuprite as collectables, and Illuminati Perch in between windows. Save up all of them, and turn in your loads whenever one is on bonus. You can get 3 cuprite/morel per go as long as your perception is high enough: do Discerning Eye+Methodical twice and then Single Mind+Methodical (600 GP total). At 72 scrip a piece, or 48 for the fish, when on bonus, you can easily get a book in 2-3 hours (depending on your luck with fishing and bonuses). The 20% boost for being on bonus is key; be patient and unafraid to fill a retainer up with collectables waiting for a bonus window. I usually turn in up to about 1500 scrip worth before bulk-buying tokens, and repeating until my inventory is clear. I went from 1 book to 5 books in 2 weekends of 3-4 hours of doing this.