Creaking Type Noise From Front Suspension on Lexus SC430

I hear a clanking noise, particularly when first driving, whenever I roll slowly and put on the brakes. I have been told it is the sway bar bushings. I believe that both front sway bars have to be replaced and that the bushings cannot simply be pressed out with new ones replaced. They aren't all that expensive, but I've been quoted $660 to have them done including labor and parts. The parts can be purchased for about $318 (two new sway bars with bushings installed, including tax and shipping). I am wondering how difficult it is to do this work myself with the car on jack stands.

Creaking noise in driver side front quarter panel in area where door meets front fender when driving over uneven roads. Most noticeable when at low speeds, 20 - 30 mph with top down. Service department rep says it's "normal" when top down.

Its the castor arms aka #2 lower control arms

Dealer never addressed the creaking problem correctly. The creak perists, but is tolerable.

Same problem