The cage work is awesome (looks like a well laid plan) and the cowl is genius! Nicely done!
As an aside, a true cowl induction hood is sealed to the carb and actually pulls air into the intake, (If I remember from the late 60's Camaro setup) using the high pressure area (at speed) at the base of the windshield. (Hence the term induction). Of course, since yours is not sealed to the intake, and I doubt most of your driving is high speed (especially in GA woods) it should allow any hot air you have to just rise right on up out of the engine bay. Hmmmm, I wonder how that would look on a Tundra?