Well, the terminology is a little vague. I'd consider getting a second opinion. Is the car driving OK or making knocking noises or destroying tires?
maybe if you post your city, someone could recommend a shop for you.
If only the rear bushings are bad, they might cost 85-100, maybe a little more , each. maybe 3 hours total to install, could be 2 i suppose.
But, if the inner bushings are bad as well, it may be better to buy the entire arm. They CAN be pressed out and new ones pressed in. Dunno if all shops would do that or how a dealership would deal with it.
i just installed lca rear bushings in my wife's car and wish I had gotten OEM. I don't know , however, if 06 is similar to 03.
maybe someone else will chime in.