Tony is the expert at that by now!
You should be able to just unbolt the UCA from the spindle and swing it up and out of the way, then grind on the coil bucket without even having to take anything else off. Just have a jack positioned under the lower control arm to line it all back up when you re-bolt the UCA to the spindle.
I kind of thought that might be a problem when I attached my upper control arm, so Tony busted out the grinder and went to town. We didn't take too much off of mine - just a small piece, probably about 1/4 inch or less wide by about 2 or 3 inches long, closer to the front of the vehicle on both sides. Basically just the extra lip that sticks off of the coil bucket. You'll see where it looks like the UCA makes contact, just chop it off a little right there. See the image below - this is the passenger side, and you can kind of see the shiny part where the coil bucket was cut back. I circled in red the area we removed, and again, it was only a small piece.
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