If you've taken it to a lexus main dealer bodyshop, their standards are usually a lot higher than say a normal insurance body shop.
I dont know if you saw the post of when a van scraped my wife's car. It was only the rear bumper and they replaced it - total cost £1780.
Lexus don't faf about repairing, they tend to just replace so I presume the rear door will be changed and the front one will have the dents pulled.