I've knocked out a single book in a single weekend with just the miner/botanist unspoiled blue scrip turn ins (no red scrips, since it was before they could be converted). However, you kinda have to stay on those nodes all weekend long to do it. Illuminati perch from fishing (with brute leech as bait, the blue scrip cost is insignificant compared to what you'll get from them) are also a good way to get blue scrips, and they're always up regardless of time or weather.