I have not heard of or seen a 3.5 icon. I wouldnt recommend an icon set up either, mainly because of seeing how the top hat is just crap on it. As far as performance kings are there at the top. You also have ADS and OME with their nitrogen kit. How big of tires are you looking to add? You will need to replace your UCA. Stance can be achieved with bigger tires and spacers.
Are you going to add an aftermarket bumper? Dual batteries? Skid plates? Rock sliders? You have to take that in to consideration because all of that is weight. If you are going with 35s even 33s inch tires you will need to regear and cut to clear. The wheels you use will impact how your tires fit. Why am i telling you this, because one change will lead to another and next you know you are at least 10k in to it. That's why it's important to know what you want to do with the truck and then see from a financial perspective how to make most of your investment.
Dont be consumed by 2.5, 3, 4, and even 6 inch kits. From a 2.5 set up that I have from king and I was on 33s, i was doing anything a twin locked taco on 35s was able to do. I am still on factory gears (shame on me) and had about 500lbs of weight sitting up front plus me.
So the point being think about your set up before splashing the money. Do the math. 2.5 or the 3 would be more than enough. You have to take in to consideration as you increase your lift other components such as the cv axle angle will change by putting more stress on it at a different angle (meaning more prone to breaking)..
Hope this helps?!
For some perspective of what I do among other videos that you can check out: