In the hatch area, I'm going to run one straight down tube on a diagonal from the rear most nodes of the 'X' to the rear, over the frame. Then I'll run one from the rear of the hoop down to the same mount as the diagonal ones. I'll put gussets at the front corners, and I am going to tie the cage into the front and rear seatbelt mounts. Also, as my rock rails are welded to the frame section of the unibody, I'm tieing the floor mounts into thsoes as well.
Thanks for the props, Dan