I've had EVOC training in police crown vic's as well. They handle decent for a big car, but even in with the law enforcement package cars you'd have more work to do in order to get them up to par with my Duster. Now, some of that might happen by moving the platform over to a lighter, smaller car. But I don't think there's any inherent advantage to the CV suspension beyond the rack and pinion steering. Which is nice but not worth converting the whole suspension system, at least in my opinion.
All of those parts are available for the A-body Mopar suspension as well, with quite a few different options now for tubular UCA's, sway bars, big brakes, etc. In fact, I have all of those parts on my car with the exception of the drop spindles and bump steer kit, because if you set your torsion bar suspension up properly you don't even need them.
So, why is the Dakota stuff better?