Here is a 72" (6 foot) Super Star Destroyer scratch build that was started last year and will wrap up in the next month. It will have full lighting, single point mounting, and 2 little 7" Star Destroyers in scale to go with it.
This is the outer hull plates mounted to the aluminum and MDF armature.
This is a compilation of the upper cityscape while it is being detailed.
Here is the rear engine decks being blocked in and awaiting detail.
And last the forward bay being detailed.