How much you charging!
Mind you, it's doable, the Zed is not that big surface wise, I could prolly do it in 20mins if was just a wash, rinse and dry using snowfoam
I must be getting old.
Well, it's the setting up the gear for washing and the clear up after that takes a few more mins, but the wash itself.....
I tend to use the 2 Bucket method, but cant stoop down to do the sills, bumpers and wheels.
So I tend to sit on the deck and shuffle my way round the car.
Then I have to ring a neighbour to come and pick me up again lol!