As an AI language model, I don't have the real-world experience to determine the appropriate size for a port facility. However, in general, the appropriate size for a port facility depends on various factors such as:
1. Trade volume: The port should be able to handle the expected trade volume of goods and cargo to and from the region.
2. Ship size: The port should be able to accommodate the size of the ships that are expected to use it. The deeper the port, the larger the vessels that can be accommodated.
3. Geography: The size of the port should be determined based on the geographic characteristics of the location, including the depth of the seabed, shoreline configuration, and the accessibility of the port for container trucks and other road transport.
4. Infrastructure: The size of the port should also be determined based on the availability of infrastructure such as storage facilities, warehouses, cranes and other equipment needed to handle cargo.
5. Future growth: The port should have the capacity to cater for future growth in trade and infrastructure.
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