Graham, I searched all over the creation to find someone to louver the bonnet. Was willing to go one state over in either direction. Not a lot of that done in south Louisiana. Finally found a guy in Monroe, La. that custom built drag cars - he happened to have a large louvering machine, looked like a giant "C" clamp or English wheel machine. Anyway, I hauled the bonnet up to him in the back of my Tahoe, showed him what I wanted and away he went. Those were all punched in individually in one mighty metal- shearing pop with a louvering die. He had to move the brace over 4" to make room, TIGed it back in the new position. All the paint had to be stripped off first, was gonna repaint anyway. Louvering is done in big towns that cater to off-road jeeps and custom shops. All I had to do was lightly sand and respray the whole bonnet.
Bill