I like the Sternbach five in one version of Prometheus better than my own ideas. I do favour the saucer having aft mounted swept pylons for it's own warp nacelles so they are usable in docked mode.
I think five in one will make a better MVAM than just three.
I'd prefer that centralized computer control from main bridge is not the way the various segments are controlled but rather have small bridges on each seperated element that would take orders from but not be subspace radio controlled since you have crew in each one. Centralized control would be an emergency backup and not the standard method of MVAM control.