UPDATE: Although the PDF files here show the Color Sensor as a required component, that is not the actual case - the Light Sensor can easily be substituted and the challenge modified to work with grayscale. Sorry for the confusion.
Chris Smith has been hard at work putting together two PDF files:
1. A list of parts required for King's Treasure but not found in the Education Base Set
2. A list of parts required for King's Treasure but not found in Ed Base Set plus Resource Set
Click on a link above to download the PDF.
LEGO Education created and sold a parts pack for The Mayan Adventure that provided parts for Education Base Set owners so they could build the robots in that book... I have no word or idea whether LEGO Education will do the same for The King's Treasure, but I'll be inquiring and let you know when I know something.
Thanks, Chris - I know many teachers who have been anxiously awaiting this!