Running Panel Replacement

Hey, I'm hoping someone can offer me a little insight.

I was driving my 2005 prius in my local town during some construction and they had just put in some brand new granite curbs. I cut the corner a little sharp and did some pretty heavy damage to my running panel (Don't know if this is the correct name - it is the panel that runs under the driver side front and rear door closest to the ground). The panel is now concave (doesn't look that bad - a lot of people don't notice) but when you compare it to the other side the difference is quite noticeable. After looking at the panel is seems like it is actually part of the frame.

Does anyone know if this type of damage is repairable for a reasonable price. Thanks for any help!