Girl Scout Trip to Imagination Campus. Any Advice?

Our Girl Scout troop (~15 girls and their moms) is interested in a long weekend visit to WDW and Imagination Campus. I’m the WDW expert among the group but this is a whole new ballgame! It’s been hard to find many posts or reviews from anyone who has done it. Soooo - do you have any advice? Did you use a travel agent? Which sessions / workshops are the best? Did you do any add-ons like a fireworks party or cruise? Hit me with your best tips, please!