I'm looking at buying a 2000 Outback Limited. What do I need to know before buying?

My appointment with the seller is 10 AM tomorrow, so answers sooner rather than later would be nice. I have an AutoXray 6000 scanner that I plan to put on it, just to make sure there's nothing funky going on.

I can't put the URL in as a link, but the ad is mankato.craigslist.org/ cto/2497001385.html .