Hi!
I think the plan works best if you are getting at least 20 grams of carbs during induction. I've seen it happen often that some one limits carbs less than that and they don't lose weight. Also, as you go into OWL, you'll need to add carbs. A lot of people find that they need to add some carbs daily in order for weight loss to continue. That said, I would suggest eating some extra celery or a small salad at another time during the day to get your carbs to 20 during induction. Use fitday.com to see how many carbs you are eating.
The Atkins bars and shakes are NOT on the induction list, so no to them at this time. I admit I don't understand the whole carb count thing on the bars. I rarely ever have one! Hopefully some one else will pop by with the answer!
You'll do fine.