a hood with large louvers would be ideal. Skip, u are pretty much on the right track that the air is still stuck in engine bay. unfortunately, the easy way to vent is to duct the air to flow underneath the car. and that cause more lift in a car that has too much.
definetly get as much piping and the turbo ceramic coated ASAP. Deadbolt enterprises can do the turbo, and JetHot is biggy on pipes if u need leads.
if u vent on the sides like i suggested, u should create some sort of ducting or funneling to get the air from right behind the turbo/upipe.