Thanks everyone for chiming in. Few things to update. I messed around with relocating the front heads. I actually bent one of the supplied brackets to the point that I stressed it too much and it broke. Luckily Bel/Escort, being right up the road, was kind enough to offer 2 replacements for free (shout out to David, good guy up there). I bent some temporary brackets out of light gauge aluminum and mounted the heads roughly in the spots indicated by the yellow bars. Mounting with the replacement brackets is going to be difficult. The plastic portion of the top part of the bumper is nowhere near level, requiring a pretty extreme bend in the bracket, which the bracket doesn't like one bit. We'll see how it goes. I am going to go with the yellow bar spots unless someone makes a strong case in favor of the pink. I feel that the yellow more adequately centers me between the headlights and license plate both vertically and horizontally. With the pink spots, the edge of the shifter head is roughly 24" from the edge of the head light, which I'm not entirely comfortable with. In the yellow spots, I should have no more than 18-20" out to the very edge of the headlights, and a couple inches less from each head to the headlight. I will go with Veil on the headlights as well.
As for the rear, I'm probably going to go with mounting the head on the lip on the back bumper directly above the license plate. This picture
Ironic Police Car Picture shows the lip I'm referring to better than my crappy picture. I think it will be much more level, and will alleviate any light blocking issues. I plan to Veil the crap out of the actual tail light sections of the rear, but it would take an awful lot to cover that entire rear area. Hopefully the rest of that area with the exception of the tail lights isn't too reflective. With the addition of Veil and the fact that the vehicle is black, it's probably as good as I'm going to get with the ZR4 rear, and I'm just going to treat it as a receiver from here on out.