I recently had to change complete suspension of my car from Lexus Center. I own ES300 99. I am in Saudi Arabia, so the amount you will see is the conversion.
I paid around $ 3,738.77 (including Labour)
The price of AVS Shocks are $ 240.280 each. The front one are slight less then rear.
Your other alternate is to go for Camry Shock. But then you will get a hard stiff ride (which is SPORT) mode of Lexus.
Keep in mind that I paid for every thing ie, stabilizer, Engine & Gear Mounting, Rear Carriage, Driver Shaft.
Its unfortunate that I could not find anyone else who can fix ES shock. That is because ES has Electronic Shock.
Piece of advise, never buy a car from any ARAB. They brutally rape their car. I was foolish not to test drive my car and now end up paying for all bit & pieces.