Mexico's corruption problem will doom the dream
Exactly, who will pay for this? US and other countries selling pumps, vessels, motors and valves are not going to accept a Mexican IOU.
One of the companies I worked for did coker units for refineries. We would get a cash payment from PEMEX, work until it ran out, then wait for the next payment, often 6~9 months. A 2 year job may take 6~8 years. Some of the equipment would set outside unprotected in Mexico for years and be rusted out junk before it was put in service. Amazing lack of caring from so many people.