Maybe it's just me, but, why are y'all trying to make a bullet proof enclosure ???
Had a business for 20 years, using 16 & 14 gauge sheet metal. SS, Alum, and steel, are ALL very durable in a box as small as the controller needs. I would bet the Zilla uses 18-20 gauge, or thinner.
Mount the controller up high in the motor compartment, and mount it securely. Run a flexible (vacuum or pool vacuum hose), from a catch box in the grill or just under the front end. Screen it, put a small hole in a low spot on the hose, in case water does get into the hose, and let the movement of the car cool the controller. Easy to keep clean. Just look at the screen and wipe off any trash ???
Faster you go, more air to pass over or through the enclosure ???
Good work coming from around the world on this project.
