02 Tahoe Z71 nerf bars

I've been trying to find the direct replacement for the 02 Z71 Tahoe nerf bars. The Z71 has 4-5 mounting brackets and the body has cutouts to accept these. The aftermarket stuff usually only has two places to bolt these on and doesnt look that great on. Leaves a visible void in center. I put on some chrome rims and want to change to chrome nerf bars. The stock bars are black. Has anyone found these replacements in chrome? Or does anyone know the company that makes the ones that are on the vehicle now. I had heard that they were not factory equipment and were added on somewhere else.
I would also like to get chrome tow hooks.
Scott