Train Alterations

I got my gown, which I love but didn't realize that it actually had a train that is too long for me . I think I was just overwhelmed with the style and I am very concerned wih the length. I have broken my foot twice by just WALKING, and even now I am in a cast.. I am afraid of having a train, and I really don't care for a bustle since I am overweight and don't want to ADD to the problem.

Is there any other options? The place I bought the dress said they wouldn't cut the train off. Also how much do alterations generally cost.

Thanks for the help.
Alyssa