Harvest organs from living, healthy, poor donors. Go to a poor country and find batches of 100 people earning $1 a day who are willing to give up their lives with probability .01 in return for 20 years wages. You will have to pay out $730,000 per batch, but in return you get the healthy organs from a living donor which should be worth a lot more than this. Run the operation as a charity to reduce negative publicity, and truthfully stress that the prime goal of the charity is to help the poorest of the poor.