Hello i'm excited for this trip and was wondering if i could take 2 food, 1 firewood, and 2 water. That would leave you 1 food, 2 firewood, and 1 water
I'm going to need either 2 or the water or 2 of the food.  you could take a second firewood for one or the other. 
Can i ask why you need 2 more of the food or water?
I am a diabetic and need to keep my blood sugar in order.  Is there a particular reason why you need two waters and two food? 
I need 2 waters because i get really bad kidney stones if i don't drink enough water. 
What if I took all the food, you took all the water and 2 of the firewood? 
Not bad deal but could we do 1 food for me, 2 firewood and 2 waters for me, and you would get 2 food, 1 firewood and water?
I think that would be fine with me. 
🙂 Yes i'm so glad that we could come to this arrangement. I hope you have a wonderful camping trip.
Thanks!  Best of luck to you too!!