What I do is first while following flowchart and what the prerequisites is write down all the lessons on flashcards and order them based on the flowchart and prerequisites. Then I type up my script based on the lesson on what I will say and do.
I use my font to kind of designate what I will say, what the kids response might be and what what I will do.
I wish there was a video of Mr. Nebel presenting some of the lessons. So I can get an idea of how he envisions these lessons being presented.