Not a hope Martin. Impossible.
Lets say you pay someone £350 pw to do £600 of work. 'good' rounds are often sold at three times monthly value so your investment of £7,200 might produce a return of £200 pw after other defrayed costs (petrol, kit etc).
Therefore you would break even (without allowing for your paying income tax and the admin side of his wages and round record upkeep) in 36 weeks.
It's highly likely that you would have given up and lost all your money and customers long before that though.