The Gulf of Mexico minimums currently are generally 1000 hours, IR, and some turbine time helps but you can get away without any, and of course an FAA commercial certificate, (and a work permit); so I guess you're out of luck there for the time being. Your best bet might be to get the FAA commercial and instructor certificates and some R22 time and start instructing in the US where instructors are quite in demand.
Good Luck