I feel your pain. A few years ago I tore my ACL, though yours sounds more serious. I didn't sprain any other ligaments. I agree with the above poster that you should defer.
It seems like you won't have enough recovery time during winter break before returning to school. Consider all the time you will need to commit toward rehab (PT visits, home exercises, icing, etc.), and the fact that this will be during the winter. I tore mine in May. It blew my summer, but I didn't need to worry about ice and snow.
Another option is that you put off surgery until next spring. But you may miss out on summer employment opportunities. You would also be walking on an ACL-less knee for several months, which could cause some damage to your meniscus and other ligaments.
I think you have a strong argument to make to your school. Good luck.