Short update: Still waiting for MVA to open.
I got the engine tins fettled up with riv-nuts and such so pretty much all the air going through the cooling fins will be forced down and under the car, below the aluminum belly. Set up the leading edge of the belly pan with like 3/16-inch gap to scoop air in ahead of the louvers. It won't be the lowest part of the car, but it's still just under my target 5-inch clearance. I may yet adjust the rear wheels to lift the car up a quarter inch or so before I set her free.
Discovered the rear brake calipers were going to interfere with the inner fender wells, so I trimmed them. Quite a bit. Glad I noticed before taking a spirited run over some speed humps.
Popped on the registration rearview mirror. Will pull this off and put the plexi on asap with a short stem mirror.
(And yes, I know I remain unspeakably handsome despite these Unprecedented Times.)
Today I went and put the last emblems on the car. Pretty psyched I could use the pins and push nuts.
They look almost as nice from the front.