[clyde]

If I were considering a used S, I think my thinking would basically be a three question process:

How much do I want it? Answer: [This much]

How bad could the worst possibly be (within realistic reason)? [Could cost me $X over six months if I want out]

Is [answer 2] more or less than I'm willing to spend to satisfy [answer 1] desire?

It sounds like the buying process for a used S could be pretty terrible, but if I wanted the car, I'd hold my nose and deal with it.

I'd try hard to not overthink it or indulge in too much analysis. Given the environment, it doesn't seem like the likely worst case isn't that bad. If I wanted the car, I'm pretty sure I'd take the gamble.