Believe me, I'd love to get there eventually. I don't recall the Viper ratio off the top of my head, but I want to say it's ~3 turns lock to lock. If I had power steering of some variety on the Dart I would certainly be looking at a faster ratio, but back when I did the Hemi swap over a decade ago that wasn't really an option.
And just generally speaking, I was thinking over my lunch break that unless any aftermarket kit is changing the geometry, there's probably not a huge difference in feel/ride quality between the stock and aftermarket parts, assuming both are in good shape. A 100% stock suspension with stamped steel parts and rubber bushings isn't going to handle or feel all that much different than a full tubular setup with poly bushings if the geometry is the same. So the only reason I would even consider an aftermarket kit is if I wanted to fundamentally change something about the setup. Torsion bars to coilovers won't even really make that much difference, though you might get a little better or at least different ride control due to the ability to run variable spring rate springs. The pivot points are going to define the vast majority of how the car handles for anything but the most extreme driving.