yesterday some stupid b***h crashed into me

long story short she turned left into a side street, i went past and as i did she decided she wanted to turn right, the outcome, a lovely load of srapes and a dent in my door and a totally mashed wing :/ i had a quick look behind the wheel (not hard when the wing had been pushed about 3 inches back behind the wheel, everythign seemed ok, we went through the motions blah blah blah (turns out her car wasnt driveable, serves her right)
i thought it was just cosmetic, the steering wheel was a bit off centre but seeing as th car handled the same i thought the tracking had just been messed around, but whipped the wheel off today and the steering arm is bent about 5/6mm

the car obvs isnt worth alot money wise (altho the sentimental value is huge) and im worried the insurance will write the thing off :/
will a steering arm/rack cost much? does anyone have any experience with this sort of crash, would they pay out for the repairs or are they most probably gonna write it off?
cheers for your help guys