Don't worry about the upper control arms. As for lower, get the maximum motorsports ones. Do not get solid bushings. You'll regret it. The MM ones have a spherical poly bushing. Koni seems the way to go on shocks. Not saying you don't have other options. But they just work. Yellows are adjustable, oranges are great for bolt on and forget.
2003 GT: JLT CAI, summit 75mm TB, C&L plenum, 24# injectors, Mac Prochamber, SLP LM1 cat back, 3.73 Gears, FR500 Diff, FR500 diff cover, Jmod trans and shift kit, Max Motorsports subframes, shrader performance rear seat delete, APSX D2 wideband, MPT happy customer.