the kings are excellent on road. I will say they took a few months to break in the springs but they are like a Cadillac now on road adjusted to full soft. Off road they are even better, the harder you exercise them the smoother they run.
I don’t run an aftermarket uca. They make tons of fucking noise and need a lot of lubing love and I have no time for that. Been there done that. They do add bling factor and that’s about it. You will also need to run a wheel spacer or 0/negative offset rim with UCAs in most situations or they will rub a wide tire. Have to measure backspacing.
No way in hell are you going to damage the hose or reservoir they are way out of the way.
