Expanding my search for 86 C20 rear bumper

[aphares]

Hi All.

Newbie here and thanks for letting me in.

I have a 86C20 2wd 350V8. It's a diver and slowly restoring it with my own touch. I love the square body and feel the 3/4 C20 don't get enough attention.

I'm wanting to do a new rear bumper in something more like you would see on a rock climber. Finding C20 specific custom parts seems to be rare.

My question is: What years and models can I expand my search? I.e. maybe a suburban or is a C20 wider then a C10! anything you can think of to add, even if it's irrelevant may help.

Also what catalog do you keep handy for ordering original parts from?

Thanks
Art