I need a durable belt conveyor designed to transfer gravel over a distance of 150 meters. The conveyor will be used in an outdoor environment, so it must be able to withstand various weather conditions. Key Requirements: - Capable of transporting gravel - Length: 150 meters - Suitable for outdoor use Ideal Skills and Experience: - Experience with conveyor system design - Knowledge of materials suitable for outdoor equipment - Background in handling heavy-duty transport systems Please provide a detailed plan and timeline.