3" cube sci-fi modular terrain 20 - tower

I've been thinking of designing circular tower files for a while now. There's only so many photos of tinned goods on a battlefield you can see before you wonder if there's a better way? It might turn out that there isn't and these files are a waste of time, I'll leave it open to interpretation.

The files fit into a cube in all 3 dimensions and you can go as high as you please.

There are 2 'square base platform' files; these are just new 'tops' like my other files so the towers can be part of other constructions using my files.
There's a standard (round) stacking platform that connects 2 wall sections or can be the top.
A selection of platforms which have a gantry around the tower, some with ladder access.
The walls are all the same format, plain, 2 doors & 4 windows, all in either plain, corrugated or sectioned.

The wall files have little ridges at the top and bottom to locate them with the platforms.
The 'old' wall files don't have the ridges so the platforms could turn f