What equipment does it take to change and balance tires?

I was interested in starting a small business in Central America that just sells, changes, and installs new and used tires.

I really needed to know exactly what equipment I will need to send over to Central America. I know I need a Tire Changer and Tire Balancer but I know nothing about these and upon a few google searches I see there are many different kinds but I do not know what the differences are between them. Someone please tell me the differences. I need to be able to change low profile tires, regular car tires and suv and pick up tires.

I know I need replacement valves, plugs, patches, balancing weights... But besides that Im not sure what else I need.

Can someone please help me?

Much appreciated.