Douglas also offered a DC10-30 variant with the CLG removed for hot/high operations and I think Mexicana might have taken this model.
It was called a DC-10-15. Both Aeromexico and Mexicana bought it, IIRC.
I'm not really sure if it was a DC-10-10 w/ CF6-50 engines, or a light-weight series 30 - but it was some kind of hybrid. Less than a dozen built, I'm sure.