Final painting was begun with a light grey primer coat. Instead of panzer grey or black, I opted to use AK Interactive's Airbrush Grey Primer (AK-003). I'd forgotten that I had a bottle of this in one of my AK sets. I sprayed it straight (no thinner, etc.) through my Grex airbrush at 15 psi static with no issues whatsoever.
You can see the various components in the photo above: main hull, turret basket, turret, gun assembly, rear fenders, and wheels. Next up is the base coat of olive drab.