Advice needed

I’ll be able to use water fed on most of the outside no problem. Just concerned about being able to have enough pressure on my brush on that upper section against the house. Inside will be all traditional most likely on a pole for the uppers. Fortunately it’s a very shaded area so the sun won’t be too much of an issue like it is with others on the rooms, And no, the terrain is not very good, I won’t be able to place a ladder against the front side all the way to the top. Not without risking smashing the glass anyways, I can only set an extension ladder on the deck off to the side so it’s gonna be a tough one