Simple 6 point roll cage (car) - 1.75 tubing - Bend Tech PRO 7.x
This is a sample that I made for a customer demo in about 10 minutes in Bend Tech. This might be a good sample for you to build a cage from.
-The dude who started RogueFab
4Runner Build thread: https://www.roguefab.com/forum/projects-and-builds/rogue-fabrication-4runner/