You are going to remove the lower arm and the lower ball joint. You will need a tool to remove the ball joint but those are readily available. Replace the ball joint while you have it out. It's due anyway. Toyota shows the lower arm for about 131.00 and the ball joint for about 41.00. Use Toyota. You will need to align the car when you are done but you can get it close with a tape measure. $1200 isn't horrible unless you are skilled and enjoy broken knuckles. The parts will be about $375 with tax, an alignment will be about $80, and your time is worth something, but if you have the weekend, jack it up and get after it.