It looks like drivit and is very easy to clean with chemical. You do not need a lift. We do them all the time, easy jobs. Ask yourself what do I want to make in a day. If you want to make 1,000 or if you want 1,500 a day that is what you charge. If you need to rent a lift put it ontop of what you want per day.
I just did a building a bit bigger then that one 4 story and I charge 2,500 just for the exterior and was easy (softwashing), I did it in 1 1/2days with a helper, So, price it by how much you want to make per hour or day. I should charge 3,000 but I was subcontracting from a janitorial company.