I built my belt tunnel stiffener (or, as T Bird junkie quitter would call it, a "bandaid") tonight. Fairly straightforward, thank you to the user who donated a piece of carbon to my cause.
Now for the bad part.
The front chassis screw is pretty robust (it's long and goes into a lot of structure in and around the steering that is also pretty robust), but that screw in the back is going to force a TON of bending loads onto a piece of plastic that really wasn't designed to take that kind of load. Even with a bunch of washers to spread out the dead load, man....
If I can get another piece of carbon, I'm going to build one that goes from the front shock tower to the rear shock tower - there's a ton of structure to offset the brace.
My RPM arms rub slightly on the CVA's near the rear stub axle. I will clearance them accordingly, but doubt they would hit at all if I didn't have the extra travel in the truck.