I had damage on my 1998 Audi A4 back in the day, rear door, rear wheel well, and rear bumper. It came to ~$500/panel involved or ~$1,500 total. My damage was much less significant and this was almost 15 years ago, so prices have probably gone up.
Find a reputable, independent garage, make an appointment, and get a quote. Even with a $500 deductible, I expect you'll want to use your insurance. But get the quote first and then call them... Best of luck! This doesn't look like anything structural, just cosmetic. Your X1 should be whole again.