For some reason, I decided to install the air vents tonight. These weren’t too bad, but there’s not a lot of room back there to tighten the mounting nut.
I got the forward plenum mounting angles drilled to the baffles. These were a pain in the ass to curve this much and I ended up having to cut a couple of notches in the left one to follow the curve acceptably. I still have four more very small angles to fabricate and drill before I can move on to finishing the plenum.