There is a company in central FL that makes custom rollbars for trucks in the diameter of the Scrambler.
I don't know what they would need in order to duplicate one.
I actually had thought it might be a good option for them to market reproductions.
Anyway... they are "Sterling Equipment and Manufacturing Co. Of Central Florida, Inc."
Their website is down for some reason, they are up on FB.
I messaged them to check on the website issue.