I take it that it won't draft and you can hardly get any temp in your CC?
First thing I'd do is look at some of the current builds and see how the firebox sits on the cook chamber. Anytime you try to offset the firebox way out there it's going to give you problems.
And that stove is cast right? Going to be hard to weld to, and hold up on a mobile unit.
Once again, start looking at some of the current builds on the reverse flow section, once you see how they are set up, your going to want to make a major overhaul on this build.