Ok, here is a stupid question. Why not just open one of the passenger doors. In the event of electrical failure the factory door handles still work. If the truck should catch on fire I wouldn't want to rely on modifications to save my ass.
One of the things we practiced at my old work is evacuating a school bus that is one fire. You have maybe 3-5 minutes to get all the kids out before it is fully engulfed. How much time do you think you have in the truck? Yes we have had a few fires - electrical and fuel related.
Not trying to pee on your parade, I'm just a paranoid ol' timer that is trying to make every second above ground last. Whenever I'm building something I always look for possible problems and solutions to them.
What part of J'ville are you moving to? I grew up there on the west side when everything was palmetto bushes, sticker bushes and sand. Went to Ed White High School near I-10. Got the sheet of paper in '75.