Why don't you go to Staples and ask the folks what they use and the requirements. Tell them you are going to purchase one
Then go to a used office supply/surpus store if you have one close by and get one. These stores always have such equipment.
Having used such equipmdent in the past, I would think it is not in the punch system but rather the machine that you actually apply the binding. It should accommodate the size spirals for the books you want to bind. This is just my uninformed opinion.