For what it is worth, I assisted in installing a Magnumforce system in a Cuda a few years ago and I have to say I was not at all impressed with the design. I think there are far better systems out there like RMS. That said, I guess it depends on what you want for the car, I contend that you can get nearly the same level of response and control using upgraded stock type components (UCA, steering box, torsion bars, etc). Of course you don't get the weight savings that systems like RMS provide in addition to the clearance gained.
While all these aftermarket systems are cool, I guess it comes down to what you want/need and how much you can spend. Despite that, I personally find it difficult to get past the fact that many Mopars using stock style suspensions are and have been very competitive in a wide variety of motor sports.