[bdamm]

I've done plenty of work on my own Tesla. It's not hard to work on at all. Parts are not even very difficult. There are plenty of 3rd party shops (such as one I went to when I needed to replace my windshield.) I really wonder why people continue to think this. It's not 2016 any more.

[protastus]

Tesla body work is extremely expensive. Aluminum, extensive welding instead of fasteners, substantially reduced modularity due to castings, specialized tooling just off the top of my mind.

[bdamm]

Body work is expensive no matter what car you're working on. The presence of paint ensures it. The OP was talking about "maintenance" and body work doesn't fall under that category.