I've done P90X about 6 times. Just modify the exercises that week and you should be fine. You can do C&B there, plus Plyo, Yoga, & Kenpo as well. That leaves you with Shoulders & Arms and Legs & Back. You could do the Legs portion of L&B and also do Chest, Shoulders & Triceps one day.
Enjoy the vacation, Vero is awesome!!!