We lived in housing commission as a kid so Im not sure how much was my parents own out of pocket expenses but the things you are talking about, I agree *should* be included but they are not essentials IMO. The things I would say they are talking about are working locks, hot water, working stove/oven, working lights & plumbing. The rest would be up to you.
The shower curtain rod shouldn't cost you much. But if there is no frames for the fly screens then that would be costly. I lived in a house once that had no fly screens or frames to put them in so I just bought a length of flyscreen & used thumb tacks to put it over the window frame. Just be sure to push the tacks in so the holes they leave in the wood are hidden from view.