How many stuff sacks to you really need? I have a small one that I keep all of my small stuff in (Dr. Bronners, AM, contacts, lighter, etc) and a trash compactor/trash bag as a liner for my pack. That's it. Unless you're a lot more organized than I am or have a lot more small stuff I can't imagine really needing anymore than that. Granted I use my bug head net to hold my stakes and extra guyline, but that's technically making a dual-use :).
Other than that little nit-pick you have a good looking list. Without switching to a ground sleep system (for weight savings, not comfort-wise) I don't see anything I would much change. Unless you wanted to go with one of the new MLD hammock tarps and save around a half pound :D hehehe.
Also, I don't know how chilly it gets where you hike during 3.5 seasons, but I don't really see any insulating gear (base layer or otherwise). If you think/know you'll be warm then more power to you, but I know even in Missouri it can get pretty cold in the early spring and late fall and a base layer is really nice.