Thanks for all the advice. I just fabricated my spacers and installed them along with the nFabs. They look awesome on my 2012 Silver Limited.
It was definitely not an easy process to make those spacers. For anyone else trying this, I wasted a ton of time trying to use a drill press at slow speed. I was able to get some small pilot holes drilled but I eventually just got frustrated and clamped them down and took my high speed hand drill to them. That actually went through it a lot better, although my 3/8 bit is now shot (well worth it though).
Mounting the spacers was also a pain in the butt. I wasted a lot of time there. Do yourself a favor and don't reuse any of the bolts. They are too short and hard to get in place in that short space. Get (12) 8mm-1.25X30mm bolts and the lock washers that fit them. They will be easier to manipulate into place. Also when starting, be sure to remove all of the bolts from the rocker supports and then put the 3 brackets in place and just get the bolts threaded a little way in before tightening any of them down.
Cost of project: apprx. $411.27
NFabs: $350.85 @ 4 Wheel Parts
(6) 4X4X2 spacers $38.02 @ a local Metal shop (They cut them to 2 inches for me)
(12) 8mm-1.25X30mm bolts @ $.70 -> $8.40 from Home Depot
(12) 8mm lock washers - $3.00 (I forget the exact price)
(12) 8mm-1.25 nuts - $3.00 (I forget the exact price)
3/8 Drill bit - $8.00