car mechanics and car experts how much is it going to take to fix my car?...

Well if he got a ticket, his insurance company will pay for whole thing. Even if he didn't your insurance company could still fight it out & make him pay it. They probably use independent arbiters to keep out of court.

So just do what your insurance company tells you to do & if you can't drive it in to get estimates, just have it picked up and taken to the nearest one by your house that is reputable & been in business a long time.

I didn't look at the picture since I'm not a body shop man, but even the smallest dent these days other than hail dents cost $4 or $500 because there's sanding & painting even after repairing the dent.