Plus the MD
-11C hasn't really been a popular model. AZ
was the only carrier to fly MD
-11Cs, and it has cost them a lot, since they couldn't get rid of them when they phased out the MD
-11 fleet due to the rear side cargo door and related handling issues. LCAG was a candidate for those Combis, but they rejected them and only took the full PAX ones up for conversion.
AFAIK, Douglas only sold 6 MD
-11Cs, out of 200 MD