Yaris exterior parts: where to buy replacement?

[citymouse]

I came home today to find a big dent and scrape in the front of my little car, a black, 2009, Yaris Hatchback. I parked on the street in front of my apartment and... it has been squished. :(

But, it's totally cosmetic damage. What happened is:

--The hubcap/wheel cover thing on the driver's front side is entirely GONE, nowhere in sight

--Driver's side mirror is very scratched but still works

--Big scrape and big dent on a part of the car that I don't know what it's called, but it's next to the headlight and under the driver's side mirror (photo attached - the damaged part is outline in pink)


--Paint scrape on the driver's side front door but no denting.

If possible, I'd rather just repair/replace the wheel thing and front part myself, instead of reporting the damage to insurance. It looks like they just snap on and off, so I thought it might be inexpensive to replace them & wouldn't affect my insurance rate (if that is an issue for hit and run?) Is it better to get this part repainted and fixed or to buy a new one?

But I am *completely* clueless about cars. I don't know what the one part is called to even Google for it... nor a reliable vendor to buy this part & the hubcap online. (For now I'm not going to worry about the mirror as it looks more complex, wiring, etc.)

Would any of you have recommendations? Or an existing thread with the info?

Thank you to anyone who may be able to help!!! I feel like a total fool for not knowing what these things are called!!!