Where to find solid round Nerf Bars for 1985 K10?

I have a 1985 K10 that I'm almost done restoring, but need some 3" round side steps to match the upper roll bar. I'd prefer if they're already powder coated black, but I'd be ok with doing that myself if needed.

I've searched all over these here interwebs and all I've found was newer ones with a flat rubber insert for the step. Any thoughts by the experts here?

Thanks!!