No mods, except for grid size adjustments.
I know that the bigger the area of the ship, the less firepower you have per ton in the ship, but I love massive ship designs.
I wonder what the largest size of ship the game can support without crashing is, and if anyone is daring enough to design a vanilla ship that pushes the boundaries of the game engine to that point.
Here's my ship, at a small 25 Million credits.

Inspired by
15 Million Credits.
