One of these days they'll have a gondola and web cam up there to stuart lake.
Can you make a winter ascent in the fall? Probably not. But you can certainly find winter conditions in the fall. And that is what "winter climbing" is all about right? Most complaints or arguments I see stemming from this debate is someone climbed something in winter conditions during say non calendar winter then someone else just wants to complain or nitpick about it... But then again - I could see winter conditions in summer I suppose for short periods on some peaks.
For a rack I would take baby blue, green, black, and orange metolius cams, a set of stoppers and 8-10 slings. I would bring some bigger pieces for gendarme....
Oh and nope I have no idea what the conditions are like. Even if I was up there 4 days ago I would only guess. You'll probably have to stick your face into it on your own...