20 Cherry Pickers
The Pullups are going to be challenging for most people. We want to try preserve the unbroken stimulus by having people scale the Pullup to whatever they need to to be able to do them unbroken. For some people that may mean using bands, or maybe even Assisted Ring Pull ups . You can mix and match during the workout; Scale the movement in the earlier larger sets, and then as the reps decrease, you might start to be able to get a regular set of Kipping Pullups unbroken.
If you fail a set, you need to start that set again. Which is why you want to make sure you get your scale correct and also resting enough before you attempt each set. You also should remember that the Handstand Walking/Cherry Pickers will further fatigue your shoulders, so even though you may have a big unbroken Pullup set fresh, it will most likely change during the workout.