Give me creative ideas for designing a portable carrying case with a scale model of a land subdivision (loteamiento) in Latin America. The model should represent a large land subdivision with streets, manzanas (blocks), and approximately 16 lots per block. There should be a few houses on some of the lots, but the main focus is on the land division and layout. The case should be sturdy and able to carry the model safely, with the ability to be opened for client presentations. The model should fit into a carrying case, and it must be detailed enough to show roads, green spaces, and basic infrastructure