Which is more easy to change? The ball joints or just getting the upper and lower control arms replaced. Wondering ii this is something I can do at home or will it need to be done by a repair garage? The bushings look good in my existing control arms.

From the pdf manual, it looks like lower joints could be changed more easily but the uppers would require the spring to be removed. When I bought my 2006 Xfire my upper and lower bushings were bad and I paid $1600 to replace control arms on both sides. Don't know that IF I WANT pay that kind of money again for this 2004 car.