That list sounds perfect. I prepared for Rush when I packed for school in the fall, unaware of the fact (I never received anything from Panhellenic about it) that our Rush was not only in the Spring, it was informal. So, I have all these wonderful dresses, which I didn't wear until I became an active.
According to the information packet my local Panhellenic gave me, they really stressed comfort (ie., shoes, clothes appropriate for the heat--I'm from the South, etc.) and to plan for each day well in advance.
I have loads of this Formal Southern rush stuff, if there's anything you need.