Hi,
So I am in a competition to make my own bacon against a friend. I am basing my recipe off Ruhlman, but have some questions, I hope y'all can answer.

Questions.
1. My local market told me they only have frozen pork belly, is this ok or do I really need fresh?
2. Spices, I was thinking the usual plus mustard. Do I go with mustard seeds or mustard powder?
3. What cooking method for the challenge?
4. Brine?