Nothing like an article being timely - Tim Wellborn sold both the Motor Trend HEMI Super Bee & his "LAST built" HEMI Charger R/T at a MECUM auction in January.

FWIW Production of the '72 model year at Lynch Rd. Detroit, MI started 7/19, did they continue to build/finish '71s alongside '72 model year cars?

& if there were any 1972 model year HEMI cars assembled, they'd likely be pre-production & built months before the end of the '71 model year.