Investment required: Not only looking for investors, if someone can't invest money might be interested in supporting operations, etc.
rough details of the business operation: Buying BTC where is cheaper, selling it in countries where it's more expensive.
What gives you an advantage doing that over others? There is plenty of software which attempts to take advantage of these margins - have you developed any yourself? I am guessing that your answer will be a no.
If he does have the 5-10% trade per profit it really depends on his volume, it's going to be hard to find people who are bothered enough to help someone getting 2 trades a week, and the profit definelty isn't enticing enough.
Good luck, I guess.