Got a little time to dink around with this.
One of the things that really bugged me: The rear shelf was cut excessively large for the DSE mini tubs, and never patched. Generally, it's not an issue for most cars, but in mine, that's where the Tiger Cage bolts through... which would be a major issue. In the cut pics, the large square shape is the stainless Ride Tech backing plate to the rear cage section. I imagine it's designed to be covered.
This is how I got it last year. Finally got some time this week to play with it for an hour.
So cut it out more and added material that is welded to the wheel tub, the rear deck and the "frame". I feel that tying this into the cage system by Ride Tech will add a bunch of rigidity.
I'll spend some time with the grinder and clean the welded up, then drill for the cage bolts... I can't imagine it's going anywhere now. I also took the vent system out, it will get a charcoal canister on the gas tank vent.
Some pics for you.