Thanks, guys! I have a few of the Corvette louvers (a bit of an overindulgence back when those kits were $2-$5 each). Unfortunately, they're different enough from the F-body glass that they need so much work to adapt it's practically scratchbuilding. MPC's Cavaliers also had a set, but they were just flat rather than wraparound. I have yet to find a set that'll work, but I'm hoping they're out there in a kit that I missed.