Replacing collision damaged front end

Good afternoon,

there are not enough pictures for me to access the needs.

I posted below a good list of what you need from GM.

There are not the headlight assemblies. You can get them aftermarket.

Please attach more pictures.

Roy

https://www.gmpartsdirect.com/auto-parts/2008/chevrolet/impala/ls-trim/3-5l-v6-gas-engine/body-cat/bumper-and-components-front-scat

https://www.gmpartsdirect.com/auto-parts/2008/chevrolet/impala/ls-trim/3-5l-v6-gas-engine/body-cat/fender-and-components-scat

Very hard to tell exactly what parts you will need until you are able to remove some of the damaged parts to see what parts underneath them are also damaged. Looking at the pictures I would say you are looking at more than just the nose panels though.
Looking at the copart listing pictures I would say replacement wise it's likely to be both front fenders, hood, bumper cover, upper and lower grills, hood latch, headlight possibly both if it broke the mounting parts on the passenger side as a start. Then the front bumper reinforcement, energy absorber and impact bar. Likely the A/C and radiator are both damaged from the impact as well, the AC is bowed in the picture when it should be straight.
Hard to tell if the ends of the sub-frame are damaged but it's very likely. The core support is damaged but could be pulled or replaced depending on the actual damage. Cannot tell if the extensions underneath are damaged from the impact but it's possible. Those are the panels between the wheel arch and front core support.
However until it is taken apart there is likely other damage that isn't visible. It is repairable but unless you get the parts cheap it will cost more to repair than it is ever going to be worth, especially with a salvage title.