Hi,
We can help you with this task, we have experience with the design of a PON network for triple play services, step for solve this project:
1. To obtain the geographical data, that is maps, coordinates of the network header, ubication of the users.
2. To define the capacity required, number of users.
3. To define the providers from where you can to buy the materials.
4. To design the network in function of the employer requirements.
5. Generate a bill of materials.
6. To give a network design.