I wanted to get the PST front end rebuild kit (polygraphite bushings and all that good stuff). Is that as good as I've heard it is? Also, there is a discount on the front and rear sway bars if you buy them with the rebuild kit. I was wondering if they are enough of an improvement over the stock ones to spend almost $400 for the kit and sway bars as opposed to about $160 for just the front end kit. Thanks, Steve