Depending on how shot your shroud is, you can always cut the middle out and stuff a smaller light bar in it. My shroud was too far gone to restore but not quite completely shot.

You can also find a headlight guard and put a light bar inside of that. Or fab up your mount.

Also go the floating the ground route wth a rectifier/regulator and either battery or large capacitor route.

Here is a write up I did for a 350x specifically on how to float the ground.
Let me know if the link doesn't work, I can email you the actual file from my home computer.
https://lookaside.fbsbx.com/file/Hon...gnR6IqMY7g9nQQ