Thank you to Crowtree for the comment and making my decision to fit the side steps - with his anti-ding comment, I must confess I was sitting on the fence about fitting them until his response.
As it happened I had a ding on the offside rear door of my last Lexus RX450h - fortunately I was sitting in the stationary car when it happened, so the owner could not deny it. It was deepish ding - which turned into an insurance claim as the other car was a hire car.
Lexus Bristol did the work - the bill to the car hire insurance company was around £2,800!
Apparently a Lexux main dealer will remove the door, replace all seals and re spray the whole door - hence the high cost!
The car hire driver tried to offer a £100 cash to go to Dingmaster !!!! Ho Ho!!!
Thankfully, Direct 4x4 will fit the steps - so I don't have to throw any spinners around!!