Those are actually some pretty innovative concepts. I like how you would use the heated air to push away the cool air from the body of the truck, or the exhaust steam turbine. I haven't taken my fluids or thermo classes yet, so I wouldn't know what it would take to get those systems to work. Those ideas do seem like they would be worth looking into.
This is a really, really detailed concept and to be honest, I'd really like to see this on the road sometime, my only concern would be that some safety regulations might mess with the overall design if it ever hit the production line. But it'd still be wicked to see this on the roads in the future.