What makes you think the fork is bent? Isn't that a carbon fork? Carbon forks don't really bend, they break. Is the fork aluminum? Can you see that it's definitely bent? If so, it should be replaced. A good place to look would be eBay for an used original fork that came off a similar bike. Another place you could look is Craigslist, but there less chance that you will come across the identical fork there.
A used threadless fork will have the starfangle star from the previous cap still in there, and new caps come with a new nut, so you don't have to worry about getting the old nut out. As long as you buy a fork with a head tube as long as your old one or longer, all you have to do is cut it down or add spacers.