Contact the makers of the ones you like and ask them if they can build one without the holes. If not I would order one and fill in the holes. I have a welder so that would be easy. Then I would have the bumper Linex sprayed to hide the welding.
2014 1500 Laramie Longhorn CC 4x4 8spd, 3.92 EcoDiesel - Hammerhead rear bumper sprayed with Linex - Iron Cross steps sprayed with Linex - Trucks cover tool box/Tonneau Cover combo - Geno's cabin filter - 275-65-20 Nitto Terra Grappler - Air Lift 1000