Hi, all.
I'm a lurker newly joined to the group. As such, I won't be posting too often, too much to learn. I do think, Krista, you might consider seeking ways to reduce the weight carried or pulled if you will have a chance to go 400 miles. One thing you might consider is a wood gas stove such as:
http://www.garlington.biz/Ray/WoodGasStove/

Advantages include no need to carry fuel. You simply scavange it up as you walk. It is a home-made item so you can save needed money for things best purchased.
A disadvantage would be heavy rain might make it tough to find fuel,(carry a second means of heat such as heat tabs), and it may smoke depending on design and construction.