Roll Cage CJ-5 or M-38A1 Janesville, CA $40

Good price, even just for the tubing.

https://susanville.craigslist.org/pts/d/roll-bar-willys-jeep-cj-5/6698297604.html

"Roll bar is full cage unit. Fits CJ-5, CJ-6, and M38a1."