Since sunsilk already suggested exchange, let me suggest something else which truly is a cash cow.
Bitcoin Casino! Being the house you will always gain money from gamblers. It will still have risks like the exchange but you being the first in the country may be easy to promote in local forums.
Both of our suggestion requires huge capital but until he mentions what country he resides. There might be a conflict about his country's rule about gambling but we don't know as long as it's gotta be a legitimate business and registered to his government, that will be a good business.
Being the first is what I'm thinking because there are many advantages to it. The suggestion of guigui got me because it's a good suggestion for me, the ATM management which is also like an exchange. That's a clever idea.
My country is Albania and yes gambling is illegal. I am already in the business admbet.com, its perfect!
thank you for all this ideas. I have time until September when the law will take effect!