I've begun work on a third trim sheet, modeling patterns in 3ds Max and baking, before moving to Substance to compile the texture.
Unwrapped more meshes to the new trim texture, and created a lookup table for color grading the scene which improved the overall look of the environment by a huge amount.
Continued with unwrapping and tweaking lighting.
Continued unwrapping and created a metal grate texture.
Created a post process material that switches between buffer visualization materials, I plan to use this in my fly through video.
Continued unwrapping with a strong focus on raising the scene to a consistent quality level.
Continued unwrapping. The screenshot below shows the current state of the scene: