Hi Betty Jo, I like your idea for what you want to teach.
I think the first question I would ask if teaching a class, is whether it's a project class or a technique class. We get teachers at our guild who have a small project to "sell" the class, but are really teaching a single technique. Sounds like you want the participants to be able to finish the project with what you've taught them in the class. If they know this from the start, they might be more confident about getting to the end, and also more motivated to work through to the end. Sometimes people only do enough to try out the technique and then abandon the project.
I'm doing a little teaching of machine quilting for our local HQ dealer- I'm trying to focus on what they need to know, what the pitfalls might be, and how to use what they are learning. Since I'm teaching a subject I know pretty well, it's not hard to come up with these points. Based on your work, you are very well versed in the technical and artistic aspects of your style of art quilting. You'll select the most important points for your students to learn, so they are not overwhelmed with too many things to remember or make decisions about.
I agree with asking another person to go over your outline and notes. Often what I think is clear, isn't to someone else!
This is very exciting- a big vote of confidence for you and a great opportunity to teach others your skills.