L1011PFE: I've done the Indonesian Hadj many moons ago with a similar off the wall fly-by-night outfit as yours. I was current and qualified on type and they needed me. Needless to say, I had the foresight not to embark on a journey halfway around the Globe without what was then the equivalent of about $2000 cash
up front.
It's not a matter about being naive or stupid or just plain dumb: it's just a matter of practical reality.