I am so sorry! I didn't see these questions!
The beginning class from Fenzi would be a good prerequisite, the main prerequisite for this class is that your dog is sequencing and able to start adding distance to their skills, and already have a good grasp of their directional cues.
The class started on the 15th and goes until Nov. 15th. Everyone has access to all of the materials for 6 months after the class is over. (And I will pop in from time to time to answer any questions, even once class is over)
Sorry for the delay in my response!
Amanda