Best street susp setup?

Thanks for all of the advice, I'm new to Mopars, and need all of the pointers I can get. Converting to front disc brakes, and the larger 5 on 4.5" BP wheels is in the plans, as the wheel selection is so much better. I'm split on just getting some nice Wheel Vintiques 15" chrome rally wheels, or stepping up to some 16 or 17" wheels, for the modern look.