Do you have any pictures of these driving lights that you are speaking of?
Here's a link to the lights
with the red ring. Hella has larger lights, but this compact model appears to be small enough to mount on the existing bumper at each side of the grill. The larger lights need more clearance behind them. The 4000i compact is 6.7" across, which is plenty large. It's Xenon, with ballast integrated. I really want the LED version instead but they come with blue (or black) rings.
The problem is that the red ringed lights are Xenon w/ ballast. I wanted to get LED lights that will draw less power and not fail as often as Xenons. Their LEDs come with a blue ring.
I'm attaching a picture I gimped up (gimp is a photoshop-like tool). I added lights where I'd like to place them on the front bumper. The light on the left is resized approximately to the size of the 4000i compact light.
The one on the right is closer to the size of the regular 4000 for comparison. You'd have to have some sort of mount for it, though, due to clearance needs. I like the larger look better, but I haven't found a mount that would fit there that I like, yet.
Overall, I think I'm liking the round light look better on this truck than rectangular lights, although ntbruncie1988's lightbar in the skid plate blends really nicely.