Debbie, it depends. What is the make of the machine? Is it a Singer? Do you know the model number?
Singer parts are not that hard to come by... Cathy should be able to help you find what you need.... (Mizkaki) Belts are easy...you can get one new from Mizkaki, or several other places on the web.
Whether or not to spend the time and money to go look depends on what you see in the photos. Is it rough looking?