I went with the $800 guy, as it made sense to remove the bumper. He told me that two clips were broken and they had to weld the parts. By not being authorized he doesn't have access to parts like clips. They can now match paint perfectly without having access to "Tesla" paint. But independent stations don't have access to parts. In any case, he did a great job and the car looks like new. So far, no rattles or buzzes, and sensors all appear to be working as before, as is autopilot. (I'm hoping that writing that last sentence does not attract the attention of the gods who are always watching for such statements.) I did check with a second Tesla authorized place, Weatherford BMW, and they quoted $2450. So if you just need dent removal or paint, it seems like you can save a lot of money. But if you need parts replaced, you may not have a choice.