Wright Flyers in San Antonio Texas (KSAT) has a long term contract with China Air. They currently have about 30- 35 chinese students there. All have difficulty with english and in fact more than 50 fail their initial PPL checkride because of the language problems. They (from what I understand) have hired a ESL teacher to assist with the problem.
www.wrightflyers.com
I rent aircraft from them and often talk to the CFI's about the program. They also have Mexican nationals there in addition to the walk off the street students needing BFR's, Inst training or initial training. They stay busy. I beleive they are paying about 18per hour to CFI's. The cost of living in SAT is low so for a single guy this might work. I think the average CFi is getting about 100-140 hrs per month (mix of sim and flight)