You have a 3G, which is setup quite differently from the OP's bugeye. The stock bugeye endlinks are 1/4" metal in in front, and PLASTIC in the rear. The rears are so wobbly, you can twist them with your bare hands. They will flex on every bump, and suffer a quick death. Upgrading the rear endlinks is not an option, it's mandatory.
The fronts are slightly more robust, but they'll inevitably fail, so budget in new ones with the sway bars.
Yes, thicker swaybars do improve turn-in response and induce more oversteer with an otherwise stock setup (at the slight sacrifice of ride quality), but the OP should buy adjustable bars to soften the swaybar stiffness once stiffer springs are installed.