Nice story but I don’t think a Tesla pays off.
I own a VW Up! with a 1l engine. I took it on a 4 week trip to Iceland (starting from Munich) where we had a litte incident with an exploding gas bottle that burnt half the trunk. It still drove 5000km after that without repair.
I bought the car new for 12000€ and spent around 4000€ on gasoline. I spent less than 1000€ on repairs and service so far after 65000km. So it is 17000€ for 65000km.
Comparing this for the 70000€ you spent on your Tesla I could have this car 4 times.