[Al Skierkiewicz]

Sandrag,
Muffler shops bend pipe but it changes the diameter to prevent cracking the side wall. Electricians bend pipe all the time. Any larger contractor should be able to make it happen in just a few minutes. I would ask around at your school, they liklely have a contractor they normally do business with who would do the job.
The bender you linked to is generally not designed to perform 180 degree bends. Most often these are used for 90 and 45.