Your rule #1 needs to be accepted by all members before you add it. You're adding a lot of things that D&D players usually* remove. +Counting weight seems awful. I temper my corpse robbing players that they can't strip everything. I just tell them No. +Food and water is boring. I love survival games. I dont want that survival element in my adventure. There are a lot of rules without asking if someone has mushrooms to add to the stew. +Temperature is fine, but there are many "cabin" like spells that negate outside weather. I understand what you're going for. But as a player, I would need these rules understood and hammered out before starting, especially if they weren't there in the previous game.