I am still trying to see if I am dreaming this.....

My uncle just passed away (he was 102 years old), and left me to be in charge of his estate, which includes his summer home in Wisconsin. When I made the trip up there (I was never there before), I started to look around..went in the house...found the keys for the garage (which had a volvo key on the ring)...went into the garage, and what do I see: a volvo 240 wagon partially covered up with a sheet. After peeking in the drivers window, I saw that it had 7,564 miles on it!!!!! I then thought to myself....the odometer must be bad etc. But when I pulled the cover off, I realized that this car was in MINT and I mean MINT condition. After looking at stamp on the door, I found out that it was a 1987. A relative said that she thinks he drove it to and from his regular home in N. California and the summer house in Wisconsin, and that is it. In the early 90s, he had to stop driving because of his eye sight. I popped the hood and was blown away - you could eat off of the engine - no kidding.

Question is, I have no idea the last time it was driven and am concerned that if I start to drive it, all of the seals will go out. But I also don't want to let it remain sitting in storage - volvo are meant to be driven. Any advise on how to ease this beauty back to the road?