Try this:
Okay, beeline for Priesthood, then Mathematics (Priesthood is a prereq for Writing). Start The Oracle while in the middle of Mathematics; don't chop, just wait. Once Mathematics is online, switch to high-commerce tiles, then set research for Code of Laws. Time the +50% chops (from Math) to coincide with CoL completion, so that way the Oracle is done. Code of Laws can be grabbed before the Oracle is done as well, so just time the chops to finish the Oracle at the same time or a few turns after CoL is done.