I worked at a pro-lab in NYC that got film from all over the place and from photographers just like you who wanted a reputable lab to develop it. Lots of assignment photographers from all over the world, even some from Magnum. I never saw a roll come out bad, get lost, etc. So, I would personally send out batches of 10 rolls at a time or whatever to a friend, get home and develop them at a trust-worthy place or call up a good pro lab and tell them your situation and they would likely develop and hold it for you as long as they had your credit card on file or something.