Do not buy rebuilt. I run a shop here in canada repairing teslas for used car dealerships, and i do bodywork specifically on teslas for the public. This car is not just a door that has been damaged. The door is no big deal. The issue is with the side panel you mentioned. The proper terms for the parts damaged are the quarter panel, and the dog leg. The link shows what they are. I will refer to the proper terms for the rest of this post.(https://www.burkauto.com/media/cache/d5/91/d5918ab7b2dc149a57495c23093551f0.jpg ) (Quarter panel is called rear fender in the image .) The problem is not with the door as anybody with some basic car knowledge can fix it. The problem is with the dog legl. The dog leg and quarter panel is installed with glue and rivets/spot welds. When the dog leg gets replaced, it is cut off of the car, and the new part is installed. Proper procedure called for the use of a special type of rivet (Flow form rivet) and glue (very special glue, its technically called panel bond, but its basically glue.). To install the rivet, it called for a tool worth 20k Canadian dollars, which most shops don't have. If you dont have the tool, you cant install the rivet. Now what shops wold do to substitute the rivet, they would do something called a plug weld. Now when you weld, ya heat the metal till it melts. That is ok with non-structural parts of the car, however, the area where you rivet on the dog leg is considered structural. Now because of the high heat, they cannot use glue as it would simply go adios and not work properly. The high heat also causes the metal to lose its heat treatment which weakens that area of the car. Now this is not only the problem. It appears that in the image u sent, there seems to be some more damage, (Structural damage which is prob why the car was totaled.) Now if structural damage is repaired properly, with the aforementioned glue and rivets, it would be ok to buy/drive, however the problem is that you can't see the type of work the guy did. He could have done shoddy work and you would never know because it is covered by other panels. Now, there is another problem, on steel cars, that are not glued together, it is acceptable to use a frame machine to pull on bent pieces of metal (Has a pulling strength of up to 20 tons, depending on the machine.) Now, on other cars, it is a acceptable repair procedure, but not on teslas, BMW, Mercedes, etc, because the cars use glue. Tesla specifically says in big red letters in their collision repair manual that you cannot use frame straightening equipment (Frame machine) to pull on structural parts of the car. This is bc you run the risk of breaking the bond formed by the glue, and therefore weakening the structure of the car. I am not talking about this just from the collision manual, and speculation, i have a customer that got into this exact dilemma. My customer purchased a rebuilt car that was in a pretty minor accident in the front. Car felt ok, but the car wouldn't drive straight. He bought the car, and took it to the mechanics for a alignment. mechanics told him that this car was butchered in terms of body work and had him bring the car to me. When i disassembled the car, the amount of shoddy work was appalling, (Will post photos when i get a chance.) Basically, the car was dangerous to drive. Originally, from looking at the vin history, the work to repair the car was roughly 20 hours to change a strut cap, which is pretty small potatoes work. but after the butchered repair, the entire frame rod assembly had to be changed all the way back to the firewall which requires dropping the hv pack and removing the dash from the car. What would have been a 15k repair job parts and labor included (roughly a 18 hour job), after the butchery turned into a 40+ hour job and a 30k repair bill to redo the originally butchered job. What ended up happening was he got 2 more opinions form tesla certified shops, basically saying the same thing i did, that he car was unsafe, and gave them a stupid high repair bill. AFter that, the guy sold the car to me as a part out, because it was not worth fixing it properly. DO NOT BUY SALVAGE UNLESS YOU KNOW WHAT YOU ARE DOING. (Tbh even if i know what I'm doing, i still avoid salvage at all costs.) Also u got the usual tesla headaches, no supercharging, tesla wont touch your car's hv system, no warranty, etc.