Thanks for all the feedback!
So I left out a good amount of important information and I apologize.
I'll follow up one by one, here.
1: First and foremost, I left out some of the clothing which I'll be wearing all the time and a few other things like my knife I have clipped to my side. Here is a more complete
list . So that should cover a few of your questions.
2: I live in Omaha, NE. I usually just go for 1-3 days, but the weather can vary a LOT and I want a modular system so I don't have to buy 3 different sleeping quilts, etc. I don't know a heck of a lot about the packa, so anything more you can tell me would be great. The main reason for the cuben optoin is because you can customize the size.
3: I haven't tried capilene, but I'd be interested to. I've had good experience with the smartwool so far. I guess my main concerns would be duribility and breathibility.
4: The bivy is kind of a multi-purpose item. I can put it over me if I need a little extra warmth, or use it if I'm forced to sleep on the ground. Or, if it's a warm night, I could forgo the underquilt and just use the bivy in the hammock. That's the idea, anyway. I have yet to test that theory.
5: Neat idea using the hammock as a bivy.
6: With that more complete list, you'll see that I carry a knife. It's really just to help with making a fire. I don't have a cook kit planned. I find that cooking meals is rewarding, but more trouble than it's worth, IMO. I do like a nice, warm fire in the evenings, though. Anyway, that's what the strop's for. I guess I could eat it in a survival situation too LOL.
7: For ground insulation I would use the large plastic bags I carry and fill them with dry leaves or just find some spruce branches and use those.
8: I do have a helium 2, if the packa doesn't work out. I haven't ordered half of this stuff yet anyway.
Lemme know if you have any more ideas/questions. Cheers!