Probably not, unless you already have stiff aftermarket shocks...In my experience (Troopers, not VXs BTW) OME Nitrochargers are firmer than the stock shocks, but are not harsh. I think they are outstanding shocks, ruggedly built, and controlled ride under all circumstances on and off road (I have them on my Trooper). And more control is important if you get bigger/heavier tires, too.
As a general rule, lifting the front via torsion bar adjustment tends to make the ride harsher due to the increasingly vertical angles of the control arms. But at 2" lift you probably won't notice that much at all, it is much more noticable beyond 3" lift.
Regarding the coils, the 912s are firmer and carry loads better than stock Trooper coils, but their progressive rate keeps them riding nice. As for the 919 heavy duty coils, consider that a softer coil helps with axle articulation off road. So I recommend the 912s unless you carry around your entire tool collection like Ldub.