No way to advise re: straightening without good pics from side directly across from the fork (showing the head tube also) and dead-on straight in front of bike, and even then it's best to evaluate in person. I've straightened many, many forks and frames, and it's not terribly risky. I did one on my own bike, on the road, with nothing but my hands and eye to the point I could ride it no hands, and I rode it as a commuter for years afterward. You should be able to get a reasonably priced replacement, but you must verify correct steerer (fork column) length, correct bearing seat, proper blade length and geometry for your frame. BUT if you are seeing no ill effect on handling or toe clearance you are probably fine doing nothing. The fork actually does not experience very great stress to the degree that a minor bend is a problem.