That's a pretty specific question, but if you're sure that you want to start a distributor business for Coca Cola products, start first by contacting them direct. Here's a page I found on their website, talking about their partnership with bottlers and distributors:
Questions you may want to ask:
--Are there openings for new distributors? If so, what's the process to become eligible?
--Are there fees involved in becoming a distributor?
--What are the ongoing costs a distributor needs to pay to Coca Cola?
Find a distributor far enough away from where you want to set up business and ask their advice. If you're not going to compete with them, they could provide you with information on how they got started.
And if you want to read a sample plan from a distributor business, check out this one:
It's not your industry, but there may be general concepts which will help you.
Good luck with your business idea.