Choy Sum Harvesting Vision System

I need an end-to-end computer-vision pipeline that spots every Choy Sum plant in my greenhouse, decides whether it is Immature, Mature, or Overmature, pinpoints its X-Y-Z position, and flags only the harvest-ready plants for a robotic arm... (Budget: $250 - $750 USD, Jobs: Artificial Intelligence, C Programming, C++ Programming, Computer Vision, Python, Pytorch, Software Architecture, YOLO)