Hmm, it sounds like we have the same lift. I ordered my struts pre-assembled.
I don't remember any clunking sounds from the front. I do remember lots of squeaking that sounded like rubber bushings and what not. I should have lubricated the bushings with soap.
RRO does warn that funky things can happen if the upper A arm, ball joint, and bump stops are put together wrong. See the PLEASE NOTE section of
http://www.rocky-road.com/kjarm.html. In particular they warn about mounting the ball joint to the wrong side of the control arm.
I did have a heck of a racket coming from the back after going over a bump. It turned out that bolts on the rear shocks were not tight enough. One came loose.
The suspension was incredibly stiff at first. It took maybe three months to break in. Now that it's broken in I'm happy with it. I still think it might be a little stiff in the front, but that's good given that I plan to add some weight over the coming year.