I think it's a 2016 P100D which means it might have a SC01 option code so Supercharging should be transferable to the new owner.
Couple of other things:
(1) Do you know if any of the door handles have been replaced with newer generation ones?
(2) Do you know if the owner has purchased the optional Enhanced Anti-Theft? (
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(3) With that high of milage, do you know when the HEPA filter was changed last? Parts are available separately so you can do it yourself I you so choose (
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(4) Can you ask the owner if he can share the part number label for the battery pack? You can find it under the passenger wheel well on the corner of the battery pack. The owner may need to raise the suspension to the highest level.
(5) The P100DS supported launch mode, and if you performed it many times Tesla would need to replace the drive units under the HV battery pack/drive unit warranty. you should ask the owner how many times Tesla has had to do that?
(6) When the owner completed the MCU/2 upgraded, did he/she pay extra for the new radio option with MCU/2, or was that skipped?
(7) Full Self Driving - Did the owner need to have all of the cameras upgraded to support Full Self Driving?
(8) I assume that with the MCU/2, that he/she had the HW2 computer upgraded to the FSD computer.