It is a great question that the OP has asked and I have gone through the responses looking for them to comment but they haven't. I am assuming that they  have already gotten the right response and by now they should have been able to make a decision. What I want to add is this you, do not need to start big you can start small with what you have and if it goes well for you within the next 3 - 6 months and you think it's something that you can do, then you can go ahead to expand and buy bigger equipment that would serve you well in the long-run.