I'm trying to get the X4 design to work in Springsharp

The X4 design was a fast battleship with an 11in armor basis and a 25 knot speed. The armament was similar to the Dreadnought with 10-12in guns. Springsharp doesn't have a good facility for specifying the armament layout in detail, although I expect that to be fixed in Springsharp 3.0. At my level of understanding about how Springsharp works, the X4 design fails. I can do some ridiculous things about inflating the beam and displacement all out of proportion, and get a viable Springsharp design, but it is not anything like the real design from 1906.