No room for rotopax, unless I put them outboard of the tire. There is about and inch between the tire and tailgate. When I did the initial test fits, I was anticipating trimming off some of the frame to pull the carrier and tire in closer, but it turns out I didn't need to. I had to extend the upper arm mounts out a bit farther than I liked, but I guess that is the sacrifice I have to make for having such wide tires.
Good leaders are scarce, so I am following myself.