Those prices might be applicable in a 3rd world country. I would multiply those numbers by 3, easily.No PDR is going to fix that. Metal too distorted and stretched not to mention being on a body line. Does that model have the VIN stickers visible when you open the hood? If so, I would repair instead of replace. Maybe $200-$250 to fix the dent. $200 for paint. $150 to blend the door. If you're able, I would do some prep by removing moldings and trim and headlight to make the job easier and to avoid overspray on the trim from careless taping.
Since the OP's car is silver, it would not surprise me if blending into other areas besides the door will be necessary. Silver is a very difficult color to match.
I would probably hire a PDR guy and let him do the best he can and see how it turns out.