The Hyqueous Vaults Reference & Handout Pack contains extra maps (including an un-keyed one for virtual tabletops), the monster roster, and the player handouts. Download it from here: https://drive.google.com/open?id=16Lei4GzcWh3KBK6Rgp4s7bNTQW4TCZfD
If you use a virtual tabletop, please let me know if the included one works for you, or whether you'd prefer something that's not pdf.