Thank you guys so much for all the information. I need some time to read these links and do some further investigations of my own from there, but this is tremendously helpful. I suppose I should have mentioned in my initial post that I was looking for a stainless steel only - I just won't deal with aluminum, period. Regardless, thank you to C. Kelley and Chad for all your input on those models. I will only be cooking for myself and have no refrigeration, so I wouldn't be able to make practical use of the ginormous 40+ quart sizes.
As to the method of wood fire I'll be using, I want to first experiment with "3 stone" types. Then, since I'm currently in an area with a lot of adobe in the ground, I want to next make and mess with something I'd say is closest to a traditional hettsui, but primarily out of stone (
https://s-media-cache-ak0.pinimg.com/236x/07/0f/6a/070f6adb51b63df61888d49a6d0daa65.jpg <--- copy link to image to see basically what I have in mind). I will be able to control the size of the area the heat comes in closest contact with this way, so I anticipate that being the better of the two options. I mainly want to try out "3 stone" because I will be moving around a lot, and won't always be in an area where I have previously had the time and resources to have built a little stove. I want to see if its even a viable option.
I've been gathering a lot of dead wood from the neglected trees around here that nobody prunes over the last several days, so that by the time I have made a decision as to which model I'll get I'll have a good store of fuel to tinker with. I will certainly post my conclusions on these experiments once they've taken place.