1 - The Cote de Blanc yeast makes a good cider, but so do many others. Experiment with others after you use the Cote de Blanc to get a feel for what you like. Some of them (can't think of which off the top of my head) I wasn't able to distinguish it from one yeast strain to the next. I experimented with bread yeast just to know for myself what it tasted like...it wasn't very good.
2 - Campden and pectic enzyme aren't necessary for reasons already listed.
3 - the white/table sugar is fine if you're just trying to boost the ABV, but as was already said, try out using Frozen Apple Juice Concentrate as a sugar boost; it also gives you more apple flavor. I don't do it any other way anymore.
4 - Also, do another experiment with just yeast and juice only, no added sugar. It won't be very strong on the alcohol, but it sure does taste good.
5 - If this is a new hobby to you and you enjoy it after this experiment, invest in some basic homebrewing supplies and ALWAYS take detailed notes. It makes it easier to replicate your successes and to correct your mistakes.