Bro i think the body shop is going to ask for more $ eventually. Your hit is definately a total loss tbh. Shops want to make $ and they make nothing on a total loss.
I’d ask the shop for a full detailed breakdown of the parts they are sourcing as oem original (new) and not off some salvage wrecked tesla to save costs. Your insurance should have clauses stipulating whether it can repaired with Afmrkwt or original parts. I suspect the cost of parts alone will be 16k. And being an aluminum frame, and new susp parts you’ll need…I doubt it will never drive the same once repaired. This is a Plaid…a rocket on wheels with carefully calibrated tech/machinery from the factory. No aftermarket body shop can hope to replicate the calibration. Body damage? Sure.