It's not because of ZZ Top other than they used that particular name for their build. I have a 2012 CTS-V Now, back on topic. I really like that aluminum piece those fellas in PA make. My guess is it's not cheap and in the 6000-7000 dollar range, but aluminum is stronger than steel and half as heavy. Plus you don't have to worry about corrosion for the most part. Just a comment on the idea of these racks failing and causing a loss of your machine. It's rarely the rack in my experience but generally the system used to mount the machine that fails, or the machine isn't tied down in error. It's a great idea for that truck and your business Bryan, and I would think any competent fabricator could build you a rigid, removable platform out of the materials of your choosing and that fits within your budget.