That ARB system does looks nice! Are they custom building it for you or will this be available to the 120 platform soon? Yes, there seems to be QC issues with SPC but they seem to have made improvements like the grease fitting to now lube that ball joint. Time will tell on them.
Anyway, this post has me in a tail spin again on suspension. I went with Icon again as they seem to make it the easier to shop for specific suspension tuned exactly for your rig. For instance I just tried searching for Kings via their site and a few others and can't find shocks for the 4th gen. I know there are kits out there but I want to see al-a-carte pricing and description. Plus I got a 25% off retail deal on the Icons so went with it again on my 4th gen. I also thought digressive would be better for higher speed desert runs but others thing progressive is better. I'm building this rig as a DD for my GF and our baby plus as an overland rig for long trips on dirt. Thus comfort and control are my primary concerns. My Icon does seem 'harsh' at times and it does suck sometimes having to bring it up to speed on shelf roads which we have plenty of in AZ. Maybe King would be better for me in the end? I just can't find their equivalent of a stage two ICON setup.