Design a fully rebuildable undergro...

Design a fully rebuildable underground Minecraft farm level using only vanilla blocks and Chisel-style blocks. Requirements: The farm must contain exactly 135 crop plots arranged in a clean, symmetrical grid. Each plot must be exactly 5x5 farmland with a single water source in the center. Plots must be separated by 1-block-wide walkways. Every 5 plots, include a 3-block-wide main corridor for easy navigation. Include a central 3-block-wide cross corridor that divides the farm into 4 equal sections. Dimensions: The layout should be a 15 by 9 plot grid (total 135 plots). Each plot including spacing should follow a consistent modular pattern (5 farmland + 1 walkway spacing). Provide exact total dimensions of the room in blocks. IT NEEDS TO BE USABLE AND PRACTICAL