I just got off the phone with Gary at NCD, by the end of the month they will be introducing a package deal for mini-lifts. It includes a 2" or 2 1/2" front and a 1 1/2" or 2" rear spacer and all of the hardware for right around $200. or if you already have the leveling kit and want to get the spacers just for the rear, they will be going for around $89.
I will be flying out west in about a month for work and will be very close to the Oxnard, CA area where NCD is located. I plan on stopping by to pick up a mini-lift for myself and was going to offer to pick up kits for anyone else that is interested. His web price includes shipping, since I will be picking them up in person he said he would be willing to drop the price a bit. Let me know.