i'm with landtank.
nickw's truck held up pretty well to a slow roll
https://forum.ih8mud.com/showthread.php?t=109465&highlight=canoe
i can almost see adding a single roll bar at the c pillar. that would probably provide enough reinforcement to the roof to prevent it ever pancaking in a full roll at speed. you don't really need lateral support for the bar because the roof structure would control the collapse.
nickw's truck held up pretty well to a slow roll
https://forum.ih8mud.com/showthread.php?t=109465&highlight=canoe
i can almost see adding a single roll bar at the c pillar. that would probably provide enough reinforcement to the roof to prevent it ever pancaking in a full roll at speed. you don't really need lateral support for the bar because the roof structure would control the collapse.