I would never suggest that idea to a friend. But if you’re dead set on Buying an overpriced Truck, paying a Driver, Fuel, maintenance, insurance, paying someone a % off the top, while you try to make a profit. Keep a friend and give Me a call. I’m not your friend.
I don't see how you make enough money off 1 truck to pay the driver decent and make enough to be worth your and your friends time. I would never think of doing a buisness partnership with a friend or family member to begin with, just a bad idea all around.