Do you have a favorite printer who charges half the price of the chain printing stores and provides more personal service? They can help print the first 2 pages (back to back) in color and the other 14 pages (also back to back) in greyscale, for a very reasonable price per workbook.
By the way, the last page is intentionally left blank for the back of the mini storybook. You don't have to actually "print" that page. It's a place saver.
What is helping you print and prepare materials for your 19 Day Feast childrens' and junior youth programs? Do these pages allow them to stay in the same room as the adults and observe and learn and contribute when they can?