The least amount of stuff you can take the better. Layering system like this worked fantastic www.theadventuremansguild.com/post/how-to-create-an-adventure-layering-system As far as shelter we suggest plan for emergency and not for comfort. There is always somewhere you can pay to sleep. If you are planing to camp I would go with a bivi and a tarp. Light weight is the key to comfort. We had way too much stuff. Unless it is bottled always filter your water!
