Jason, i really dont know of anyone that does stuff like that in town. I posted a phone number of a guy up the page a little, I know he does suspension work and other stuff for custom rigs but I dont know if he makes exos. Ask at South West 4WD if they can do it or if they know someone in town. I was in their shop and it did not look like they were setup to do tube work.
A bar might be able to be bent out far enough in-between the doors to still let the doors operate. I dont know how far out it would have to stick out though. Also/or a 1/4" to 3/8" plate could be bolted to the top of the body in-between the door jambs and stick up a little out of the top to tie in the top of the exo. You understand what im saying?, it is kind of hard to explain where exactly im talking about.
Drawing the exo was fun, maybe in a few years i will do something like that to my rig. I am not for sure if i am going to the 4 wheel expo yet, we can talk closer to the time it is. Also i was planning on going to farmington to watch the rock crawling championships that same weekend in march but i may be going to phx instead, i dont know yet.