Forget about MAF (Missionary Aviation Fellowship). They are christian fundamentalists. I had a talk with them a couple of years ago in Nairobi, when I was looking for a job.
You need to have a special training in various bible-related courses, and the idea is that you are a missionary in the first place, who also happens to hold a CPL/IFR. Your interview is primarily about your dedication to spreading the christian faith, and your way of life will be assessed accordingly.
Unless you're really into that sort of thing, forget it.