I wish there was a forehead-smack smilie here! That's brilliant!
So, I was originally thinking of building this with Hirst Arts tiles, but constructing tiles to match those in the various Legions of Steel
Tilesets. All 1" squares, with the Industrial Edge mold pieces along the borders, just to give it that more 3D feel. That was pretty complicated, the worst part being the enourmous number of half-tiles involved (all LoS
tiles have half-square borders). I actually went so far as to have it quoted by someone as a commission, complete and painted. Not cheap.
The idea of building a base or floor, and then simply creating wall-sections seems much, much more doable!
Please do keep us appraised of your progress (especially if there are photos)!