Congrats on your find. I have the exact same car and its still running great at 147,000 miles. I would also check to see if your ETM electronic throttle module has been replaced. It was a 10yr/200k miles warranty item. If you don't have records, an easy way to tell is by looking at it for a yellow sticker on it. Those are the updated modules.

Those window switches go after a while, I had to replace mine. I bought an aftermarket one for 100.00 shipped.

Enjoy your new car. That's some really low mileage. Post any problems you have here or on matts volvo site. We've just about seen them all.