Heya,
Just saw this, I used to sell light bars and have one left:
https://trucklumi.eu/products/49-inch-240w-cree-xte-led-lightbar-48x5w-bulbs-6d-reflector
It's not searchable on the main site, but that link will take you to it.
It's extremely thin, but it is 49 inches wide though so I'd...