Okay here is the thing... That is a huge amount of plants.

I am not saying it cannot be done, but you have your work ahead of you.

You need to look at this site in Basic Growing to learn about germinating plants. Also study every post on this site about outdoor growing.

You have a lot of reading to do.

You need to check Seeds and strains for recommendations on strains and where to buy seeds.

When You start seed depends on where you are and what is the last frost date for your area. It also depends on if you start them indoors or outdoors.

If you put over 200 plants close together it is asking to get raided.

Study the growing forums here and then ask more questions.