If I ever did a E body cage, the bar would for sure hold tight to the A pillar, and go through the dash. It looks cleaner, and doesn't add a blind spot.
Mine is an Alston's chassis works kit and the front bars do not go through the dash. It fit nice and was what I wanted, but I will redo the front bars at some point so they go through the dash. At the time I didn't want to cut the dash, but after dealing w/ it like it is, I wish I'd cut the crap out of it and tucked the bars up nice.
Only pic I have here...