Hello, I am thinking that we should try to split everything as close to 50/50 as possible
could you try for 70/30 possibilities
2 items 70/30 your way, one item 70/30 my way.  Which item do you have the highest preference for? 
Food and water is my highest preference. firewood is least thing 
Okay, firewood is my highest priority, so we can work this out 🙂
Yes me too think that this is the best🙂
Okay cool, I think once we reach the minimum of messages, we can submit the deal.  
yes, sure Thanks for the understanding the deal 
No problem.  Our priorities were different so we were able to make a mutually beneficial deal. 
yes our mutual understanding makes us both beneficiaries in best way