Does anyone have the full Instructions for Egress from The City of Ember?

I read this book with my fifth graders every year, and together each class tries to figure out the instructions. I have searched many times online, but have never found a true answer. Here is what we think...

Instructions for Egress

This official document is to be kept in strict security for a period of 220 years. After that time preparations have been made for all inhabitants to leave the city. Instructions are as follows:

1. Explore path along river within pipeworks.

2. Find stone marked with E by river's edge.

3. Climb ladder down riverbank to ledge approximately eight feet below.

4. With your backs to the water, you will find door of boathouse bunker. Key is behind small steel panel to the right of door. Remove key, open door.

5. Locate boat, carry into light. Boat is stocked with necessary equipment. Back _______________ onto s___________ ___eet.

6. Using ropes, lower boats down into water. Head downstream. Use _______ to avoid rocks and assist over rapids.

7. You will travel approx. 3 hours. Disembark where river ends. Follow the path.