A modern nuclear command cruiser from the Zumwalt design

How would you design a modern US nuclear-powered guided-missile command cruiser?

Start with the Zumwalt hull and its integrated electric system, then investigate replacing the generating plant with a Ford-derived reactor.

The proposed design begins with the largest current American surface-combatant hull rather than an entirely new form. A reactor derived from the Ford-class plant would replace the existing source of electrical power. Because Zumwalt already distributes propulsion and combat-system demand through an integrated electric system, the conceptual change is principally at the generation end. Detailed naval architecture would still be required, but this path preserves an existing escort-scale hull and power-distribution philosophy.