I have had the clunk for several thousand miles now...have greased it, and it still came back. I have just gotten used to it, and only notice it once in a while. It doesn't harm anything though, so I would just try to live with it...it doesn't harm anything.
As for the stabilizer bar...do you have aftermarket links? If so, you could just take a grease needle to it if they don't have zerks. That would most likely be a temporary solution to it. Did you check to make sure the bolts at the axle and swaybar are tight? There really shouldn't be much play (if any) in the ball joints. If so, you may need to replace the links/link ends.