True, the cost of parts is high, VERY high. Fortunately they don't often need parts. It's just that WHEN they do (not if) they will set you back.
I could say to go get a surplus post office car, but I figured you'd want something nice. (A friend had a P.O. van with a big back.) Try an English import Range Rover or Land Rover SIII. They hold a lot of people.
I drove a rhd 420 Jag for about a year with no problems, and a - get this - 48 Bentley for about 6 months, also with no problems, just a little tinkering every now and then.
Back in Washngton DC, I had a customer who drove his Shadow daily and often came in with small problems, most of which he could have fixed himself, and then he skipped town without paying a few thousand bucks. But you see that way it didn't cost him much to drive the car!