I would go with the R/C, I just did mine last month, $517.00 delivered to my door, with everything I needed.
Road stiff for about 2 weeks, now its softer than factory, plus I ditched the sway and track bars.
R/C uses different metal for their springs and they say the old sagging problem is gone, so far so good! Tell em u r a Jeep Forum member and u get 10% off! Good Luck