I agree that the X ticks off a lot of boxes. I looked. Just none in a price and/or age I would consider.Two comments.
The latest Highland Model 3 refresh is reported to have much better rear seats.
Perhaps the real solution to your dilema is to test a Model X. Much greater rear seat comfort, easier entry/exit for tall people, lots of space for people and cargo, still pretty fast etc. Biggest issue is that it does not look as cool as the beautiful Model S.
Good luck with what ever you choose.