Look for "OEM quality" of components (wire gauge and insulation thickness, plus terminals). Seems like there are several vendors out there, but only a few have "the good stuff". Unless Painless Wiring has specific pre-built harnesses for your vehicle, you might look elsewhere as most of their stuff tends to be "cut to fit" universal items (think "wiring a street rod").
In general, there are several different harnesses to make up the complete set. Forward lamp, engine compartment, a/c (underhood and inside), rear lamps, harness that goes between the fuse block and rear lamps, instrument panel, interior lamps, and possibly a few more.
And, of course, have a Chrysler FSM handy to track the circuits and wire color codes FIRST. Then you can realize just how inter-connected the various harnesses tend to be.
What is bad with your current wiring? Just curious.
CBODY67