SVX Lifespan?

[svxthc]

What is the average lifespan of an SVX, mainly the motor? I know the transmissions tend to go out, my dad's did at like 40k miles. But his legacy is still running strong at 230,000 miles. What would you wager on a 92 with 150,000 miles? I'm just curious how long a car like that would last with leaky valves, and how much are those to fix? Like I said, I just want the knowledge im not buying this car...check it out anyway http://www.autotrader.com/fyc/vdp.js...5637771#vdptop