Side Skirt/Fender hit from ran over object.

[Safo]

Hey guys,

I recently bought a 1995 240SX SE and it had this damage before. I wish to have it repaired, but I'm not sure whats the best way to have it repaired. As you can see in the pictures its also rusted. The previous owner said he ran something over and the tire kicked it up damaging the car.

Should I have the door, fender, and side skirt removed cut and welded? also the chassis there need to be welded. What would you recommend to repair it?

Thanks in advanced for any input on this.