Check out some of the older posts on this forum and on the Chocolate Alchemy forum. One of the first things you will need to decide is how much chocolate you want to make - and how much money you will have to spend. Until you have answered those questions every answer is conditional. Do you want to make 50kg a week or 5,000kg, for example. Do you have a million dollars or ten thousand? Can you make any equipment yourself?
Can I suggest that you take some time to read some older posts and then ask very specific questions?