Your tasks;
1. to connect ardupilot/qgrouncontrol and custom gcs with bebop parrot, drones with pixhawk mini/mini pix/cubeblack
2. to add pi camera, and other payloads with sensors to the task 1.
3. creating waypoints to display in lon/lan coordinates
4. Logging and analyzing
my budet: usd 80
plz see the attached files.