You can cut them, it doesn't seem like a hard process. Search the site for people who have.
I bought clubman bars and didn't need to change my cables, I just rerouted them differently. They start on the right side of the frame and loop to the left, under the headlight ears, and then from the left side of the headlight they meet up at the right-hand controls. The clutch cable is the same process.
(Though you probably shouldn't go by what I said, because the throttle still kind of sticks. I gotta fiddle with them some more.)