Also check to make sure he is talking the 6" Fabtech as Fabtech also sells a coilover 3" kit, which from what I have heard is pretty crappy.
Go with the OME setup, contact
www.trdparts4u.com, they sell the OME kit for a great price. I have the full OME and it is great, just get Bilstein rear shocks instead of the OME ones, everything else works together quite well.
